Doppler omnidirectional beacon signal hybrid modulation method, system, device and medium

Abstract

The present disclosure relates to a method, system, device and medium for hybrid modulation of a Doppler omnidirectional beacon signal, and relates to the field of antenna or signal and system technology. The method comprises: respectively configuring a first preset additional odd modulation function and a first preset additional even modulation function on one side of a preset odd mixing function and a preset even mixing function, to obtain a first upper sideband carrier signal and a first lower sideband carrier signal corresponding to the Doppler omnidirectional beacon; respectively configuring a second preset additional odd modulation function and a second preset additional even modulation function on the other side of the preset odd mixing function and the preset even mixing function, and respectively performing anti-phase modulation on the second preset additional odd modulation function and the second preset additional even modulation function according to a set modulation index, to obtain a second upper sideband carrier signal and a second lower sideband carrier signal corresponding to the Doppler omnidirectional beacon. The embodiment of the present disclosure can realize hybrid modulation of the Doppler omnidirectional beacon signal.

Description

Technical Field

[0001] The present disclosure relates to the field of antenna or signal and system technology, and in particular to a Doppler omnidirectional beacon signal hybrid modulation method, system, electronic device and storage medium. Background Art

[0002] The Doppler Omnidirectional Range (DVOR) system is a radio navigation device approved by ICAO as an international standard. It is currently widely used in civil aviation and general aviation. It is a high-precision land-based short-range angle measurement system.

[0003] Because the DVOR antenna system is a circular array, with adjacent antennas spaced approximately 0.7λ apart (λ is the carrier wavelength), radiating signals at such close distances can easily cause mutual coupling between the antennas. This changes the electromagnetic field in the surrounding space, altering the current, radiated power, and input power at each antenna, reducing the radiation efficiency of both. Antenna mutual coupling can occur in several ways, including dual-receiving antenna coupling, dual-transmitting antenna coupling, and single-transmitting-receiving coupling. Therefore, the most severe mutual coupling occurs in the DVOR antenna array.

[0004] Based on the above, the existing DVOR sideband antenna array decoupling technology is complex, installation and debugging are cumbersome, and the subsequent maintenance cost is high. Summary of the Invention

[0005] The present disclosure proposes a Doppler omnidirectional beacon signal hybrid modulation method, system, device and medium technology solution.

[0006] According to one aspect of the present disclosure, a Doppler omnidirectional beacon signal hybrid modulation method is provided, comprising:

[0007] configuring a first preset additional odd modulation function and a first preset additional even modulation function on one side of a preset odd mixing function and a preset even mixing function, respectively, to obtain a first upper sideband carrier signal and a first lower sideband carrier signal corresponding to the Doppler omnidirectional beacon;

[0008] respectively configuring a second preset additional odd modulation function and a second preset additional even modulation function on the other side of the preset odd mixing function and the preset even mixing function, and respectively performing anti-phase modulation on the second preset additional odd modulation function and the second preset additional even modulation function according to a set modulation index to obtain a second upper sideband carrier signal and a second lower sideband carrier signal corresponding to the Doppler omnidirectional beacon;

[0009] The first upper sideband carrier signal and the second upper sideband carrier signal are configured as upper sideband carrier signals, and the first lower sideband carrier signal and the second lower sideband carrier signal are configured as lower sideband carrier signals.

[0010] Preferably, the method further comprises: a plurality of odd-numbered antenna groups; wherein the plurality of odd-numbered antenna groups are configured with the preset odd mixing function;

[0011] After the upper sideband carrier signal or the lower sideband carrier signal corresponding to a first odd-numbered antenna in the multiple odd-numbered antenna groups is transmitted, controlling the first odd-numbered antenna to be turned off, inversely modulating the carrier phase of the second upper sideband carrier signal or the second lower sideband carrier signal corresponding to the first odd-numbered antenna to a preset modulation phase of the first upper sideband carrier signal or the first sideband carrier signal corresponding to the first odd-numbered antenna, controlling the first odd-numbered antenna to be turned off, and controlling the second odd-numbered antenna in the multiple odd-numbered antenna groups to be turned on;

[0012] After the upper sideband carrier signal or the lower sideband carrier signal corresponding to the second odd-numbered antenna in the multiple odd-numbered antenna groups is transmitted, controlling the second odd-numbered antenna to be turned off, inversely modulating the carrier phase of the second upper sideband carrier signal or the second lower sideband carrier signal corresponding to the second odd-numbered antenna to the preset modulation phase of the first upper sideband carrier signal or the first sideband carrier signal corresponding to the second odd-numbered antenna, controlling the second odd-numbered antenna to be turned off, and controlling the third odd-numbered antenna in the multiple odd-numbered antenna groups to be turned on;

[0013] Until the upper sideband carrier signals or lower sideband carrier signals corresponding to all odd-numbered antennas in the plurality of odd-numbered antenna groups are completely transmitted.

[0014] Preferably, the method further comprises: a plurality of even-numbered antenna groups; wherein the even-numbered antenna groups are configured with the preset even mixing function;

[0015] After a preset delay time after the first odd-numbered antenna in the plurality of odd-numbered antenna groups transmits or operates, or after a preset delay time has passed, the first even-numbered antenna in the plurality of even-numbered antenna groups is turned on;

[0016] After the upper sideband carrier signal or the lower sideband carrier signal corresponding to the first even-numbered antenna in the multiple even-numbered antenna groups is transmitted, the first even-numbered antenna is controlled to be turned off, the carrier phase of the second upper sideband carrier signal or the second lower sideband carrier signal corresponding to the first even-numbered antenna is inversely modulated to the preset modulation phase of the first upper sideband carrier signal or the first sideband carrier signal corresponding to the first even-numbered antenna, the first even-numbered antenna is controlled to be turned off, and the second even-numbered antenna in the multiple even-numbered antenna groups is controlled to be turned on;

[0017] After the upper sideband carrier signal or the lower sideband carrier signal corresponding to the second even-numbered antenna in the multiple even-numbered antenna groups is transmitted, controlling the second even-numbered antenna to be turned off, inversely modulating the carrier phase of the second upper sideband carrier signal or the second lower sideband carrier signal corresponding to the second even-numbered antenna to the preset modulation phase of the first upper sideband carrier signal or the first sideband carrier signal corresponding to the second even-numbered antenna, controlling the second even-numbered antenna to be turned off, and controlling the third even-numbered antenna in the multiple even-numbered antenna groups to be turned on;

[0018] Until the upper sideband carrier signals or lower sideband carrier signals corresponding to all even-numbered antennas in the multiple even-numbered antenna groups are completely transmitted.

[0019] Preferably, after the upper sideband carrier signal corresponding to all odd-numbered antennas in the multiple odd-numbered antenna groups is completed, all odd-numbered antennas in the multiple odd-numbered antenna groups switch to transmitting the lower sideband carrier signal; or, after the lower sideband carrier signal corresponding to all odd-numbered antennas in the multiple odd-numbered antenna groups is completed, all odd-numbered antennas in the multiple odd-numbered antenna groups switch to transmitting the upper sideband carrier signal; and / or,

[0020] After the upper sideband carrier signals corresponding to all even antennas in the multiple even antenna groups are transmitted, all even antennas in the multiple even antenna groups switch to transmitting the lower sideband carrier signals; or, after the lower sideband carrier signals corresponding to all even antennas in the multiple even antenna groups are transmitted, all even antennas in the multiple even antenna groups switch to transmitting the upper sideband carrier signals.

[0021] Preferably, after the upper sideband carrier signals corresponding to all odd-numbered antennas in the plurality of odd-numbered antenna groups are completed, all odd-numbered antennas in the plurality of odd-numbered antenna groups switch to transmitting the lower sideband carrier signals, and respectively adjust the first frequency and the first preset modulation phase corresponding to the upper sideband carrier signal to the second frequency and the second preset modulation phase corresponding to the lower sideband carrier signal;

[0022] Or, after the lower sideband carrier signal corresponding to all odd antennas in the multiple odd antenna groups is completed, all odd antennas in the multiple odd antenna groups switch to the upper sideband carrier signal for transmission, and the second frequency and second preset modulation phase corresponding to the lower sideband carrier signal are adjusted to the first frequency and first preset modulation phase corresponding to the upper sideband carrier signal.

[0023] Preferably, the first frequency is configured as the center frequency of the Doppler omnidirectional beacon station plus the set carrier frequency of the subcarrier signal; and / or the second frequency is configured as the center frequency of the Doppler omnidirectional beacon station minus the set carrier frequency of the subcarrier signal.

[0024] Preferably, the method further includes: obtaining the number M of antennas and numbering the antennas; when an antenna numbered N transmits an upper sideband carrier signal or an upper sideband carrier signal, the numbering configuration of the antennas spatially symmetrical therewith is (N±M / 2); and / or,

[0025] The first preset additional odd modulation function, the first preset additional even modulation function, the second preset additional odd modulation function, and the second preset additional even modulation function are respectively configured with adjustable coefficients; the amplitudes corresponding to the first preset additional odd modulation function, the first preset additional even modulation function, the second preset additional odd modulation function, and the second preset additional even modulation function are respectively adjusted using the corresponding adjustable coefficients; and / or,

[0026] The method for performing anti-phase modulation on the second preset additional odd modulation function and the second preset additional even modulation function respectively and according to the set modulation index includes: respectively determining or obtaining a first preset modulation phase and a second preset modulation phase corresponding to the first upper sideband carrier signal and the first lower sideband carrier signal; according to the set modulation index, adding 180° to the first preset modulation phase and the second preset modulation phase, respectively, to complete anti-phase modulation of the second preset additional odd modulation function and the second preset additional even modulation function; and / or, the set modulation index is configured to be 100%; and / or,

[0027] The odd mixing function, the first preset additional odd modulation function, and the second preset additional odd modulation function are respectively configured as sin functions; and the preset even mixing function, the first preset additional even modulation function, and the second preset additional even modulation function are respectively configured as cos functions.

[0028] According to one aspect of the present disclosure, a Doppler omnidirectional beacon signal hybrid modulation system is provided, comprising:

[0029] A first configuration unit is configured to configure a first preset additional odd modulation function and a first preset additional even modulation function on one side of a preset odd mixing function and a preset even mixing function, respectively, to obtain a first upper sideband carrier signal and a first lower sideband carrier signal corresponding to the Doppler omnidirectional beacon;

[0030] a second configuration unit, configured to respectively configure a second preset additional odd modulation function and a second preset additional even modulation function on the other side of the preset odd mixing function and the preset even mixing function, and respectively perform anti-phase modulation on the second preset additional odd modulation function and the second preset additional even modulation function according to a set modulation index to obtain a second upper sideband carrier signal and a second lower sideband carrier signal corresponding to the Doppler omnidirectional beacon;

[0031] The third configuration unit is configured to configure the first upper sideband carrier signal and the second upper sideband carrier signal as upper sideband carrier signals, and configure the first lower sideband carrier signal and the second lower sideband carrier signal as lower sideband carrier signals.

[0032] According to one aspect of the present disclosure, there is provided an electronic device, including:

[0033] processor;

[0034] a memory for storing processor-executable instructions;

[0035] Wherein, the processor is configured to: execute the above-mentioned Doppler omnidirectional beacon signal hybrid modulation method.

[0036] According to one aspect of the present disclosure, a computer-readable storage medium is provided, on which computer program instructions are stored. When the computer program instructions are executed by a processor, the above-mentioned Doppler omnidirectional beacon signal hybrid modulation method is implemented.

[0037] In the embodiments of the present disclosure, a Doppler omnidirectional beacon signal hybrid modulation method, system, electronic device and storage medium are proposed to solve the problems of complex decoupling technology, cumbersome installation and debugging, and high subsequent maintenance costs of existing DVOR sideband antenna arrays.

[0038] It is to be understood that both the foregoing general description and the following detailed description are exemplary and explanatory only and are not restrictive of the disclosure.

[0039] Further features and aspects of the present disclosure will become apparent from the following detailed description of exemplary embodiments with reference to the attached drawings. BRIEF DESCRIPTION OF THE DRAWINGS

[0040] The accompanying drawings herein are incorporated into and constitute a part of the specification. These drawings illustrate embodiments consistent with the present disclosure and, together with the specification, are used to explain the technical solutions of the present disclosure.

[0041] Figure 1 A flow chart showing a Doppler omnidirectional beacon signal hybrid modulation method according to an embodiment of the present disclosure;

[0042] Figure 2 A schematic diagram illustrating a hybrid modulation method for a Doppler omnidirectional beacon signal according to an embodiment of the present disclosure is shown;

[0043] Figure 3 The following is a flowchart of antenna transmission according to an embodiment of the present disclosure;

[0044] Figure 4 A block diagram of a Doppler omnidirectional beacon signal hybrid modulation system according to an embodiment of the present disclosure is shown;

[0045] Figure 5 The sideband modulation architecture of the Doppler omnidirectional beacon signal hybrid modulation system according to an embodiment of the present disclosure is shown;

[0046] Figure 6 is a block diagram of an electronic device 800 according to an exemplary embodiment;

[0047] Figure 7 is a block diagram of an electronic device 1900 according to an exemplary embodiment. DETAILED DESCRIPTION

[0048] Various exemplary embodiments, features, and aspects of the present disclosure will be described in detail below with reference to the accompanying drawings. The same reference numerals in the accompanying drawings represent elements with the same or similar functions. Although various aspects of the embodiments are shown in the accompanying drawings, the drawings are not necessarily drawn to scale unless otherwise indicated.

[0049] The word “exemplary” is used exclusively herein to mean “serving as an example, example, or illustration.” Any embodiment described herein as “exemplary” is not necessarily to be construed as preferred or advantageous over other embodiments.

[0050] The term "and / or" herein simply describes an association relationship between associated objects, indicating that three relationships can exist. For example, "A and / or B" can represent the existence of three situations: A alone, A and B simultaneously, and B alone. Furthermore, the term "at least one" herein refers to any combination of at least two of any one or more of a plurality of items. For example, "at least one of A, B, and C" can represent any one or more elements selected from the set consisting of A, B, and C.

[0051] In addition, numerous specific details are provided in the following detailed description to better illustrate the present disclosure. Those skilled in the art will appreciate that the present disclosure can be practiced without certain specific details. In some instances, methods, means, components, and circuits well known to those skilled in the art are not described in detail in order to highlight the main points of the present disclosure.

[0052] It can be understood that the above-mentioned various Doppler omnidirectional beacon signal hybrid modulation method embodiments mentioned in this disclosure can be combined with each other to form combined embodiments without violating the principle logic. Due to space limitations, this disclosure will not elaborate on them.

[0053] In addition, the present disclosure also provides a Doppler omnidirectional beacon signal hybrid modulation system, an electronic device, a computer-readable storage medium, and a program, all of which can be used to implement any Doppler omnidirectional beacon signal hybrid modulation method provided by the present disclosure. The corresponding technical solutions and descriptions can be found in the corresponding records of the Doppler omnidirectional beacon signal hybrid modulation method section, which will not be repeated here.

[0054] Figure 1 A flow chart of a Doppler omnidirectional beacon signal hybrid modulation method according to an embodiment of the present disclosure is shown as follows: Figure 1 As shown, the Doppler omnidirectional range (DOR) signal hybrid modulation method includes: step S101: configuring a first preset additional odd modulation function and a first preset additional even modulation function on one side of a preset odd mixing function and a preset even mixing function, respectively, to obtain a first upper sideband carrier signal and a first lower sideband carrier signal corresponding to the Doppler omnidirectional range (DOR); step S102: configuring a second preset additional odd modulation function and a second preset additional even modulation function on the other side of the preset odd mixing function and the preset even mixing function, respectively, and performing anti-phase modulation on the second preset additional odd modulation function and the second preset additional even modulation function according to a preset modulation index, respectively, to obtain a second upper sideband carrier signal and a second lower sideband carrier signal corresponding to the Doppler omnidirectional range (DOR); and step S103: configuring the first upper sideband carrier signal and the second upper sideband carrier signal as upper sideband carrier signals, and configuring the first lower sideband carrier signal and the second lower sideband carrier signal as lower sideband carrier signals. This method solves the problems of complex decoupling technology, cumbersome installation and debugging, and high subsequent maintenance costs of existing DVOR sideband antenna arrays.

[0055] Step S101: configuring a first preset additional odd modulation function and a first preset additional even modulation function on one side of a preset odd mixing function and a preset even mixing function respectively, to obtain a first upper sideband carrier signal and a first lower sideband carrier signal corresponding to a Doppler omnidirectional beacon.

[0056] Figure 2 FIG. 1 shows a schematic diagram of a hybrid modulation method for a Doppler omnidirectional beacon signal according to an embodiment of the present disclosure. Figure 2 As shown, a first preset additional odd modulation function is configured on one side of the preset odd mixing function to obtain a first upper sideband carrier signal corresponding to the Doppler omnidirectional beacon; a second preset additional odd modulation function is configured on the other side of the preset odd mixing function, and the second preset additional odd modulation function is inversely modulated according to the set modulation index to obtain a second upper sideband carrier signal corresponding to the Doppler omnidirectional beacon.

[0057] In the embodiments and other possible examples of the present disclosure, the intersection of the other side of the preset odd mixing function and the second preset additional odd modulation function is configured as a carrier phase reversal point. Based on the carrier phase reversal point, the second preset additional odd modulation function is inversely modulated according to a set modulation index to obtain a second upper sideband carrier signal corresponding to the Doppler omnidirectional beacon. The set modulation index is configured as 100%. Of course, those skilled in the art can also configure the set modulation index according to actual needs.

[0058] In an embodiment of the present disclosure, the odd mixing function, the first preset additional odd modulation function, and the second preset additional odd modulation function are respectively configured in the form of sin functions. For example, the odd mixing function is configured as sin[(a1)πt] 2 The preset odd mixing function parameter a1 can be configured as 1 / 720, and the odd mixing function is sin[(1 / 720)πt] 2 The first preset additional odd modulation function and the second preset additional odd modulation function are also configured as sin[(a2)πt] 2 Form and sin[(a3)πt] 2 Format; wherein, a2 and a3 respectively represent the first preset additional odd modulation function parameters and the second preset additional odd modulation function parameters.

[0059] Step S102: respectively configure a second preset additional odd modulation function and a second preset additional even modulation function on the other side of the preset odd mixing function and the preset even mixing function, and respectively perform inverse phase modulation on the second preset additional odd modulation function and the second preset additional even modulation function according to the set modulation index to obtain a second upper sideband carrier signal and a second lower sideband carrier signal corresponding to the Doppler omnidirectional beacon.

[0060] like Figure 2 As shown, a first preset additional even modulation function is configured on one side of the preset even mixing function to obtain a first lower sideband carrier signal corresponding to the Doppler omnidirectional beacon; a second preset additional even modulation function is configured on the other side of the first preset even mixing function, and the second preset additional even modulation function is inversely modulated according to the set modulation index to obtain a second lower sideband carrier signal corresponding to the Doppler omnidirectional beacon.

[0061] In the embodiments and other possible examples of the present disclosure, the intersection of the other side of the preset odd mixing function and the second preset additional even modulation function is configured as a carrier phase reversal point. Based on the carrier phase reversal point, the second preset additional even modulation function is inversely modulated according to a set modulation index to obtain a second upper sideband carrier signal corresponding to the Doppler omnidirectional beacon. The set modulation index is configured as 100%. Of course, those skilled in the art can also configure the set modulation index according to actual needs.

[0062] In an embodiment of the present disclosure, the preset even mixing function, the first preset additional even modulation function, and the second preset additional even modulation function are respectively configured in the form of cosine functions. For example, the odd mixing function is configured as cos[(b1)πt] 2 The preset even mixing function parameter b1 can be configured as 1 / 720; in this case, the odd mixing function is cos[(1 / 720)πt]2 The first preset additional even modulation function and the second preset additional even modulation function are also configured as cos[(b2)πt] 2 Form and cos[(b3)πt] 2 form; wherein b2 and b3 represent the first preset additional even modulation function parameters and the second preset additional even modulation function parameters, respectively.

[0063] In the embodiments of the present disclosure and other possible examples, traditional manufacturers use two mixing functions when designing the sideband modulation signal of DVOR: odd mixing function sin[(1 / 720)πt] 2 and the even mixing function cos[(1 / 720)πt] 2 The even mixing function can also be viewed as an odd mixing function delayed by 1 / 1440 seconds. Since the sum of the even and odd mixing functions is always 1, when both are modulated to the upper sideband frequency (f0 + the subcarrier signal's set carrier frequency) Hz at a 100% modulation index and transmitted by two adjacent antennas, a relatively pure upper sideband carrier spectrum can be obtained through spatial superposition. At the same time, due to the smoothing effect of the odd / even mixing function, the radiated signal from each antenna starts and ends at 0, thus avoiding the impulse response caused by the antenna array relaying the radiation of the upper and lower sideband single-frequency unmodulated signals. Here, f0 represents the center frequency of the Doppler omnidirectional beacon station, and the set carrier frequency of the subcarrier signal can be configured to 9960 Hz.

[0064] In an embodiment of the present disclosure, the method further includes: a plurality of odd-numbered antenna groups; wherein the plurality of odd-numbered antenna groups are configured with the preset odd mixing function; after the upper sideband carrier signal or the lower sideband carrier signal corresponding to the first odd-numbered antenna in the plurality of odd-numbered antenna groups is transmitted, the first odd-numbered antenna is controlled to be turned off, the carrier phase of the second upper sideband carrier signal or the second lower sideband carrier signal corresponding to the first odd-numbered antenna is inversely modulated to the preset modulation phase of the first upper sideband carrier signal or the first sideband carrier signal corresponding to the first odd-numbered antenna, the first odd-numbered antenna is controlled to be turned off, and the second odd-numbered antenna in the plurality of odd-numbered antenna groups is controlled to be turned off. line is turned on; after the upper sideband carrier signal or the lower sideband carrier signal corresponding to the second odd-numbered antenna in the multiple odd-numbered antenna groups is transmitted, the second odd-numbered antenna is controlled to be turned off, and the carrier phase of the second upper sideband carrier signal or the second lower sideband carrier signal corresponding to the second odd-numbered antenna is inversely modulated to the preset modulation phase of the first upper sideband carrier signal or the first sideband carrier signal corresponding to the second odd-numbered antenna, and the second odd-numbered antenna is controlled to be turned off and the third odd-numbered antenna in the multiple odd-numbered antenna groups is controlled to be turned on; until the upper sideband carrier signal or the lower sideband carrier signal corresponding to all odd-numbered antennas in the multiple odd-numbered antenna groups is transmitted.

[0065] In an embodiment of the present disclosure, the method further includes: a plurality of even-numbered antenna groups; wherein the even-numbered antenna groups are configured with the preset even mixing function; after a preset delay time after the first odd-numbered antenna in the plurality of odd-numbered antenna groups transmits or works, or after a preset delay time, the first even-numbered antenna in the plurality of even-numbered antenna groups is turned on; after the upper sideband carrier signal or the lower sideband carrier signal corresponding to the first even-numbered antenna in the plurality of even-numbered antenna groups is transmitted, the first even-numbered antenna is controlled to be turned off, and the carrier phase of the second upper sideband carrier signal or the second lower sideband carrier signal corresponding to the first even-numbered antenna is inversely modulated to the preset modulation phase of the first upper sideband carrier signal or the first sideband carrier signal corresponding to the first even-numbered antenna. , controlling the first even antenna to turn off and controlling the second even antenna in the multiple even antenna groups to turn on; after the upper sideband carrier signal or the lower sideband carrier signal corresponding to the second even antenna in the multiple even antenna groups is transmitted, controlling the second even antenna to turn off, inversely modulating the carrier phase of the second upper sideband carrier signal or the second lower sideband carrier signal corresponding to the second even antenna to the preset modulation phase of the first upper sideband carrier signal or the first sideband carrier signal corresponding to the second even antenna, controlling the second even antenna to turn off and controlling the third even antenna in the multiple even antenna groups to turn on; until the upper sideband carrier signals or the lower sideband carrier signals corresponding to all even antennas in the multiple even antenna groups are transmitted.

[0066] like Figure 2 As shown, taking the adjacent antenna No. 1 and antenna No. 2 as an example, antenna No. 2 is delayed by 1 / 1440 second (s) (preset delay time), and a first preset additional odd modulation function and a first preset additional even modulation function are added to one side of the preset odd mixing function and the preset even mixing function emitted by the two antennas corresponding to the adjacent antenna No. 1 and antenna No. 2; and a second preset additional odd modulation function and a second preset additional even modulation function are respectively configured on the other side of the preset odd mixing function and the preset even mixing function.

[0067] In the embodiments of the present disclosure and other possible examples, taking the preset odd mixing function (odd antenna transmission) to modulate the upper sideband carrier signal as an example, the upper sideband carrier signal transmitted by antenna No. 1 starting from time zero is divided into 3 segments, namely segment 1: the first preset additional odd modulation function (Formula 1), segment 2: the preset odd mixing function (Formula 2) and segment 3: the second preset additional odd modulation function (Formula 3).

[0068]

[0069] Similarly, in the embodiments of the present disclosure and other possible examples, taking the preset even mixing function (even antenna transmission) to modulate the upper sideband carrier signal as an example, the upper sideband carrier signal transmitted by antenna No. 1 starting from time zero is divided into three segments, namely the first preset additional even modulation function, the preset even mixing function and the second preset additional even modulation function.

[0070] In an embodiment of the present disclosure, the first preset additional odd modulation function, the first preset additional even modulation function, the second preset additional odd modulation function, and the second preset additional even modulation function are each configured with an adjustable coefficient K; the amplitudes corresponding to the first preset additional odd modulation function, the first preset additional even modulation function, the second preset additional odd modulation function, and the second preset additional even modulation function are adjusted using the corresponding adjustable coefficient K. The adjustable coefficient K can be set according to the actual coupling depth during the decoupling commissioning of the initial installation of the device.

[0071] In an embodiment of the present disclosure, the method of performing anti-phase modulation on the second preset additional odd modulation function and the second preset additional even modulation function respectively and according to the set modulation index includes: respectively determining or obtaining the first preset modulation phase and the second preset modulation phase corresponding to the first upper sideband carrier signal and the first lower sideband carrier signal; according to the set modulation index, adding 1800 to the first preset modulation phase and the second preset modulation phase, respectively, to complete the anti-phase modulation of the second preset additional odd modulation function and the second preset additional even modulation function.

[0072] In an embodiment of the present disclosure, after the upper sideband carrier signal corresponding to all odd antennas in the multiple odd antenna groups is completed, all odd antennas in the multiple odd antenna groups switch to the lower sideband carrier signal transmission; or, after the lower sideband carrier signal corresponding to all odd antennas in the multiple odd antenna groups is completed, all odd antennas in the multiple odd antenna groups switch to the upper sideband carrier signal transmission.

[0073] In an embodiment of the present disclosure, after the upper sideband carrier signals corresponding to all even antennas in the multiple even antenna groups are transmitted, all even antennas in the multiple even antenna groups switch to transmitting the lower sideband carrier signals; or, after the lower sideband carrier signals corresponding to all even antennas in the multiple even antenna groups are transmitted, all even antennas in the multiple even antenna groups switch to transmitting the upper sideband carrier signals.

[0074] In an embodiment of the present disclosure, after the upper sideband carrier signal corresponding to all odd antennas in the multiple odd antenna groups is completed, all odd antennas in the multiple odd antenna groups switch to transmitting the lower sideband carrier signal, and the first frequency and the first preset modulation phase corresponding to the upper sideband carrier signal are respectively adjusted to the second frequency and the second preset modulation phase corresponding to the lower sideband carrier signal.

[0075] In an embodiment of the present disclosure, after the lower sideband carrier signal corresponding to all odd antennas in the multiple odd antenna groups is completed, all odd antennas in the multiple odd antenna groups switch to the upper sideband carrier signal for transmission, and the second frequency and second preset modulation phase corresponding to the lower sideband carrier signal are adjusted to the first frequency and first preset modulation phase corresponding to the upper sideband carrier signal.

[0076] In an embodiment of the present disclosure, the first frequency is configured as the center frequency f0 of the Doppler omnidirectional beacon station plus the set carrier frequency of the subcarrier signal; and / or the second frequency is configured as the center frequency f0 of the Doppler omnidirectional beacon station minus the set carrier frequency of the subcarrier signal. The set carrier frequency of the subcarrier signal can be configured as 9960 Hz.

[0077] For example, in the embodiments of the present disclosure and other possible examples, the first preset modulation phase of the first upper sideband carrier signal and the first lower sideband carrier signal corresponding to segment 1 and segment 2 is δ. The first frequency corresponding to the upper sideband carrier signal can be configured to be (f0+9960) Hz, which lasts from time 0 to the phase reversal moment (phase reversal moment) t=3 / 1440s. At the phase reversal moment t=3 / 1440s, the phase of the modulated carrier signal is flipped by 1800 to (δ+180°), and the inverted upper sideband carrier signal is modulated by the mixed modulation signal (carrier signal) of segment 3, and the modulation index is set to 100%.

[0078] In an embodiment of the present disclosure, the method further includes: obtaining the number M of antennas and numbering the antennas; when an antenna numbered N transmits an upper sideband carrier signal or an upper sideband carrier signal, the numbering configuration of the antennas spatially symmetrical with it is (N±M / 2).

[0079] In the embodiments of the present disclosure and other possible examples, if the number of antennas is M, when an antenna numbered N transmits an upper / lower sideband mixed modulation signal (upper / lower sideband carrier signal), the antennas spatially symmetrical to it are numbered (N±M / 2). Taking 48 antennas as an example, when an antenna numbered N transmits an upper / lower sideband carrier signal, the antennas spatially symmetrical to it are numbered (N±24) and transmit the lower / upper sideband carrier signal. This ensures that the upper and lower sideband carrier signals are always spatially symmetrical relative to the carrier signal.

[0080] Table 1

[0081] Antenna Group 1 Antenna No. 1 Antenna No. 5 Antenna No. 9 Antenna No. 13 Antenna No. 17 Antenna No. 21 Antenna Group 2 Antenna No. 2 Antenna No. 6 Antenna No. 10 Antenna No. 14 Antenna No. 18 Antenna No. 22 Antenna Group 3 Antenna No. 3 Antenna No. 7 Antenna No. 11 Antenna No. 15 Antenna No. 19 Antenna No. 23 Antenna Group 4 Antenna No. 4 Antenna No. 8 Antenna No. 12 Antenna No. 16 Antenna No. 20 Antenna No. 24 Antenna Group 5 Antenna No. 25 Antenna No. 29 Antenna No. 33 Antenna No. 37 Antenna No. 41 Antenna No. 45 Antenna Group 6 Antenna No. 26 Antenna No. 30 Antenna No. 34 Antenna No. 38 Antenna No. 42 Antenna No. 46 Antenna Group 7 Antenna No. 27 Antenna No. 31 Antenna No. 35 Antenna No. 39 Antenna No. 43 Antenna No. 47 Antenna Group 8 Antenna No. 28 Antenna No. 32 Antenna No. 36 Antenna No. 40 Antenna No. 44 Antenna No. 48

[0082] In the embodiments of the present disclosure and other possible examples, as shown in Table 1, taking 48 antennas as an example, the 48 sideband antennas are divided into 8 antenna groups (4 odd-numbered antenna groups and 4 even-numbered antenna groups). This means that only eight antennas are connected to the upper / lower sideband carrier signal at the same time, and the connection time of each antenna is 1 / 360 second. When the upper sideband carrier signal is connected to antenna group 1 (the first group of multiple odd-numbered antenna groups), the upper sideband carrier signal is continuously radiated by antennas 1, 5, 9, 13, 17, and 21 (all antennas in the first group of multiple odd-numbered antenna groups) for a period of 1 / 60 second. At this time, the lower sideband carrier signal is seamlessly switched to antenna group 1, and the eight antennas begin to radiate the lower sideband carrier signal in turn. In this way, every 1 / 30 second, antenna group 1 will complete the rotation radiation of the upper and lower sidebands, and the same is true for other antenna groups. Among them, the odd-numbered antenna groups include: antenna group 1, antenna group 3, antenna group 5, antenna group 7; the even-numbered antenna groups include: antenna group 2, antenna group 4, antenna group 6, antenna group 8.

[0083] For example, in the embodiments of the present disclosure and other possible examples, the transmission duration of a single antenna is configured to be 1 / 360 (4 / 1440) s. After the transmission is completed, the carrier phase is flipped 180° again and returns to the initial phase (the first preset modulation phase or the second preset modulation phase) δ. Antenna No. 1 is turned off. At this time, antenna No. 5 in the same group is turned on and the same form of modulated signal is radiated in the same way. After antenna No. 5 is transmitted, antenna No. 9, antenna No. 13, antenna No. 17, and antenna No. 21 are transmitted. In this way, antenna group 1 transmits the upper sideband mixed signal in one circle within 1 / 60 s.

[0084] At the 1 / 60 second mark, antenna group 1 completes one rotation of the upper sideband mixed signal (upper sideband carrier signal). The mixed modulation signal remains unchanged, but the modulated carrier frequency changes to the second frequency (f0-9960) Hz of the lower sideband carrier signal corresponding to the Doppler omnidirectional beacon, and the phase changes to the second preset modulation phase θ. The signal is then transmitted sequentially from antennas 1, 5, 9, 13, 17, and 21 using the same modulation scheme and conversion sequence, completing one rotation of the lower sideband mixed signal. In this way, a single antenna group completes the transmission and conversion of the upper and lower sideband carrier signals within 1 / 30 second.

[0085] In order to ensure that the sideband signals are fed in turn on the 48 sideband antennas, the transmission of adjacent antennas will have a delay of 1 / 1440s. For the segment 2 signal, the mixing function is equivalent to completing and The transformation is also called the even-odd transformation.

[0086] Step S103: configuring the first upper sideband carrier signal and the second upper sideband carrier signal as upper sideband carrier signals, and configuring the first lower sideband carrier signal and the second lower sideband carrier signal as lower sideband carrier signals.

[0087] Figure 3 FIG. 1 shows a flow chart of antenna transmission according to an embodiment of the present disclosure. Figure 3 As shown, at any time, there will always be a pair of second upper sideband carrier signals and a pair of second lower sideband carrier signals that are in opposite phases. This means that at any time, the second upper sideband carrier signal or the second lower sideband carrier signal radiated into the air cancels each other out to 0, and the aircraft still receives the sideband signal (the first upper sideband carrier signal or the first lower sideband carrier signal) corresponding to the preset odd mixing function and the preset even mixing function. The existence of the additional modulation function (the first preset additional odd modulation function, the first preset additional even modulation function, the second preset additional odd modulation function and the second preset additional even modulation function) will not affect the DVOR composite signal, but it can play a decoupling role. Based on the above, the embodiment of the present disclosure proposes a new decoupling method to change the mutual impedance decoupling between adjacent antennas.

[0088] The Doppler omnidirectional beacon signal hybrid modulation method may be performed by a Doppler omnidirectional beacon signal hybrid modulation system. For example, the Doppler omnidirectional beacon signal hybrid modulation method may be performed by a terminal device, a server, or other processing device, wherein the terminal device may be a user equipment (UE), a mobile device, a user terminal, a terminal, a cellular phone, a cordless phone, a personal digital assistant (PDA), a handheld device, a computing device, an in-vehicle device, a wearable device, etc. In some possible implementations, the Doppler omnidirectional beacon signal hybrid modulation method may be implemented by a processor calling computer-readable instructions stored in a memory.

[0089] Those skilled in the art will understand that in the above-mentioned Doppler omnidirectional beacon signal hybrid modulation method of the specific implementation method, the writing order of each step does not mean a strict execution order and does not constitute any limitation on the implementation process. The specific execution order of each step should be determined by its function and possible internal logic.

[0090] Figure 4 A block diagram of a Doppler omnidirectional beacon signal hybrid modulation system according to an embodiment of the present disclosure is shown as follows: Figure 4 As shown, the Doppler omnidirectional beacon signal hybrid modulation system includes: a first configuration unit 101, used to configure a first preset additional odd modulation function and a first preset additional even modulation function on one side of a preset odd mixing function and a preset even mixing function, respectively, to obtain a first upper sideband carrier signal and a first lower sideband carrier signal corresponding to the Doppler omnidirectional beacon; a second configuration unit 102, used to configure a second preset additional odd modulation function and a second preset additional even modulation function on the other side of the preset odd mixing function and the preset even mixing function, respectively, and respectively perform anti-phase modulation on the second preset additional odd modulation function and the second preset additional even modulation function according to a set modulation index, to obtain a second upper sideband carrier signal and a second lower sideband carrier signal corresponding to the Doppler omnidirectional beacon; a third configuration unit 103, used to configure the first upper sideband carrier signal and the second upper sideband carrier signal as upper sideband carrier signals, and configure the first lower sideband carrier signal and the second lower sideband carrier signal as lower sideband carrier signals.

[0091] Figure 5 The sideband modulation architecture of the Doppler omnidirectional beacon signal hybrid modulation system according to an embodiment of the present disclosure is shown as follows: Figure 5 As shown, the Doppler omnidirectional beacon signal hybrid modulation system also includes: a reference timer; the reference timer is used to provide a first preset modulation phase and a second preset modulation phase corresponding to the upper / lower sideband carrier signal, a preset delay time, a preset switching time corresponding to the upper / lower sideband carrier signal, and a preset antenna switching time.

[0092] In the embodiments of the present disclosure and other possible examples, taking 48 sideband antennas as an example, the preset delay time can be configured as 1 / 1440s, the preset switching time can be configured as 1 / 60s, and the preset antenna switching time can be configured as 1 / 360s.

[0093] like Figure 5 As shown, after the upper / lower sideband carrier signals are generated, they are divided into multiple upper / lower sideband carrier signals with consistent phase and equal power using a one-to-many splitter. The multiple upper / lower sideband carrier signals with consistent phase and equal power are sent to a fixed delay unit, which delays the multiple upper / lower sideband carrier signals to varying degrees before sending them to the upper and lower sideband switching unit. The upper and lower sideband switching unit interchanges the connections between the multiple upper / lower sideband carrier signals and the antenna groups based on the preset switching time. The antenna distribution unit is composed of eight six-choose-one RF switches, and the output of each switch is connected to an antenna group.

[0094] In the embodiments of the present disclosure and other possible examples, taking the upper sideband path as an example, the first frequency (first carrier frequency) of the upper sideband carrier signal is configured to (f0-9960) Hz. Among them, 9960 Hz represents the set carrier frequency of the subcarrier signal, which is divided into four upper sideband signals with consistent phase and equal power through a one-to-four splitter. The four signals are sent to a fixed delay unit, which delays the four signals to different degrees (0s, 1 / 1440s, 2 / 1440s, 3 / 1440s) and then sends them to the upper and lower sideband switching units. Here, every 1 / 60 second (preset switching time), the connection between the four upper / lower sideband carrier signals and the antenna group will be interchanged. The horizontal dotted line connection in the figure represents the state before the interchange, the cross dotted line represents the state after the interchange, \ represents the upper sideband signal, and / represents the lower sideband signal. The lower sideband signal path is similar to the upper sideband, and the second frequency (second carrier frequency) of the lower sideband carrier signal is configured to (f0-9960) Hz. Here, 9960 Hz represents the set carrier frequency of the subcarrier signal.

[0095] In the embodiments of the present disclosure and other possible examples, the antenna distribution unit is composed of an eight-way six-to-one RF switch, the output of each switch is connected to an antenna group, and the 48 sideband antennas are divided into 8 antenna groups, as shown in Table 1. This means that only eight antennas are connected to the upper / lower sideband signals at the same time, and the connection time of each antenna is 1 / 360 second. When the upper sideband signal is connected to antenna group 1, the upper sideband signal is continuously radiated by antennas 1, 5, 9, 13, 17, and 21 in turn for a period of 1 / 60 second. At this time, the lower sideband signal is seamlessly switched to antenna group 1, and the eight antennas begin to radiate the lower sideband signal in turn. In this way, every 1 / 30 second, antenna group 1 will complete the rotation of upper and lower sidebands, and the same is true for other antenna groups.

[0096] In summary, the present disclosure introduces an additional modulation function to replace the traditional method of relying on hardware decoupling. The existence of the adjustable coefficient K makes decoupling debugging more convenient. The decoupling of the sideband antenna can be completed by changing the coefficient K by software. Later maintenance no longer needs to consider the impact of changes in the sideband cable length on the mutual coupling of the sideband antenna.

[0097] In some embodiments, the functions or modules included in the system provided by the embodiments of the present disclosure can be used to execute the method described in the above Doppler omnidirectional beacon signal hybrid modulation method embodiment. Its specific implementation can refer to the description of the above method embodiment. For the sake of brevity, it will not be repeated here.

[0098] The present disclosure also provides a computer-readable storage medium having computer program instructions stored thereon, which, when executed by a processor, implements the above-mentioned Doppler omnidirectional beacon signal hybrid modulation method. The computer-readable storage medium may be a non-volatile computer-readable storage medium.

[0099] The present disclosure also provides an electronic device comprising: a processor; and a memory for storing instructions executable by the processor; wherein the processor is configured to implement the aforementioned Doppler omnidirectional beacon signal hybrid modulation method. The electronic device can be provided as a terminal, server, or other device.

[0100] Figure 6 8 is a block diagram of an electronic device 800 according to an exemplary embodiment. For example, the electronic device 800 may be a mobile phone, a computer, a digital broadcast terminal, a messaging device, a game console, a tablet device, a medical device, a fitness device, a personal digital assistant, or the like.

[0101] Reference Figure 6, the electronic device 800 may include one or more of the following components: a processing component 802 , a memory 804 , a power component 806 , a multimedia component 808 , an audio component 810 , an input / output (I / O) interface 812 , a sensor component 814 , and a communication component 816 .

[0102] The processing component 802 generally controls the overall operation of the electronic device 800, such as operations associated with display, phone calls, data communications, camera operation, and recording operations. The processing component 802 may include one or more processors 820 to execute instructions to perform all or part of the steps of the above-described method. In addition, the processing component 802 may include one or more modules to facilitate interaction between the processing component 802 and other components. For example, the processing component 802 may include a multimedia module to facilitate interaction between the multimedia component 808 and the processing component 802.

[0103] The memory 804 is configured to store various types of data to support operations on the electronic device 800. Examples of such data include instructions for any application or method operating on the electronic device 800, contact data, phone book data, messages, pictures, videos, etc. The memory 804 can be implemented by any type of volatile or non-volatile storage device, or a combination thereof, such as static random access memory (SRAM), electrically erasable programmable read-only memory (EEPROM), erasable programmable read-only memory (EPROM), programmable read-only memory (PROM), read-only memory (ROM), magnetic memory, flash memory, magnetic disk, or optical disk.

[0104] The power supply component 806 provides power to the various components of the electronic device 800. The power supply component 806 may include a power management system, one or more power supplies, and other components associated with generating, managing, and distributing power to the electronic device 800.

[0105] The multimedia component 808 includes a screen that provides an output interface between the electronic device 800 and the user. In some embodiments, the screen may include a liquid crystal display (LCD) and a touch panel (TP). If the screen includes a touch panel, the screen can be implemented as a touch screen to receive input signals from the user. The touch panel includes one or more touch sensors to sense touch, slide, and gestures on the touch panel. The touch sensor can not only sense the boundaries of the touch or slide action, but also detect the duration and pressure associated with the touch or slide operation. In some embodiments, the multimedia component 808 includes a front camera and / or a rear camera. When the electronic device 800 is in an operating mode, such as a shooting mode or a video mode, the front camera and / or the rear camera can receive external multimedia data. Each front camera and rear camera can be a fixed optical lens system or have a focal length and optical zoom capability.

[0106] The audio component 810 is configured to output and / or input audio signals. For example, the audio component 810 includes a microphone (MIC), which is configured to receive external audio signals when the electronic device 800 is in an operating mode, such as a call mode, a recording mode, and a voice recognition mode. The received audio signal can be further stored in the memory 804 or transmitted via the communication component 816. In some embodiments, the audio component 810 also includes a speaker for outputting audio signals.

[0107] I / O interface 812 provides an interface between processing component 802 and peripheral interface modules, such as a keyboard, click wheel, buttons, etc. These buttons may include but are not limited to: a home button, volume buttons, a start button, and a lock button.

[0108] The sensor assembly 814 includes one or more sensors for providing various aspects of status assessment for the electronic device 800. For example, the sensor assembly 814 can detect the open / closed state of the electronic device 800, the relative positioning of components, such as the display and keypad of the electronic device 800. The sensor assembly 814 can also detect changes in the position of the electronic device 800 or a component of the electronic device 800, the presence or absence of user contact with the electronic device 800, the orientation or acceleration / deceleration of the electronic device 800, and temperature changes of the electronic device 800. The sensor assembly 814 may include a proximity sensor configured to detect the presence of nearby objects without any physical contact. The sensor assembly 814 may also include a light sensor, such as a CMOS or CCD image sensor, for use in imaging applications. In some embodiments, the sensor assembly 814 may also include an accelerometer, a gyroscope sensor, a magnetic sensor, a pressure sensor, or a temperature sensor.

[0109] The communication component 816 is configured to facilitate wired or wireless communication between the electronic device 800 and other devices. The electronic device 800 can access a wireless network based on a communication standard, such as WiFi, 2G or 3G, or a combination thereof. In an exemplary embodiment, the communication component 816 receives a broadcast signal or broadcast-related information from an external broadcast management system via a broadcast channel. In an exemplary embodiment, the communication component 816 also includes a near field communication (NFC) module to facilitate short-range communication. For example, the NFC module can be implemented based on radio frequency identification (RFID) technology, infrared data association (IrDA) technology, ultra-wideband (UWB) technology, Bluetooth (BT) technology and other technologies.

[0110] In an exemplary embodiment, the electronic device 800 may be implemented by one or more application-specific integrated circuits (ASICs), digital signal processors (DSPs), digital signal processing devices (DSPDs), programmable logic devices (PLDs), field programmable gate arrays (FPGAs), controllers, microcontrollers, microprocessors, or other electronic components to perform the above methods.

[0111] In an exemplary embodiment, a non-volatile computer-readable storage medium is also provided, such as a memory 804 including computer program instructions. The computer program instructions can be executed by the processor 820 of the electronic device 800 to perform the above method.

[0112] Figure 7 1 is a block diagram of an electronic device 1900 according to an exemplary embodiment. For example, the electronic device 1900 may be provided as a server. Figure 7 The electronic device 1900 includes a processing component 1922, which further includes one or more processors, and a memory resource represented by a memory 1932 for storing instructions executable by the processing component 1922, such as an application. The application stored in the memory 1932 may include one or more modules, each corresponding to a set of instructions. In addition, the processing component 1922 is configured to execute the instructions to perform the above-described method.

[0113] The electronic device 1900 may further include a power supply component 1926 configured to perform power management of the electronic device 1900, a wired or wireless network interface 1950 configured to connect the electronic device 1900 to a network, and an input / output (I / O) interface 1958. The electronic device 1900 may operate based on an operating system stored in the memory 1932, such as Windows Server™, Mac OS X™, Unix™, Linux™, FreeBSD™, or the like.

[0114] In an exemplary embodiment, a non-volatile computer-readable storage medium is also provided, such as a memory 1932 including computer program instructions that can be executed by the processing component 1922 of the electronic device 1900 to perform the above method.

[0115] The present disclosure may be a system, method and / or computer program product. The computer program product may include a computer-readable storage medium carrying computer-readable program instructions for causing a processor to implement various aspects of the present disclosure.

[0116] A computer-readable storage medium can be a tangible device that can hold and store instructions for use by an instruction execution device. A computer-readable storage medium can be, for example, but not limited to, an electrical storage device, a magnetic storage device, an optical storage device, an electromagnetic storage device, a semiconductor storage device, or any suitable combination thereof. More specific examples (a non-exhaustive list) of computer-readable storage media include: a portable computer disk, a hard disk, a random access memory (RAM), a read-only memory (ROM), an erasable programmable read-only memory (EPROM or flash memory), a static random access memory (SRAM), a portable compact disc read-only memory (CD-ROM), a digital versatile disk (DVD), a memory stick, a floppy disk, a mechanical encoding device, such as a punch card or a raised structure in a groove on which instructions are stored, and any suitable combination thereof. As used herein, a computer-readable storage medium is not to be construed as a transient signal per se, such as a radio wave or other freely propagating electromagnetic wave, an electromagnetic wave propagating through a waveguide or other transmission medium (e.g., a light pulse through a fiber optic cable), or an electrical signal transmitted through an electrical wire.

[0117] The computer-readable program instructions described herein can be downloaded from a computer-readable storage medium to each computing / processing device, or downloaded to an external computer or external storage device via a network, such as the Internet, a local area network, a wide area network, and / or a wireless network. The network can include copper transmission cables, fiber optic transmission, wireless transmission, routers, firewalls, switches, gateway computers, and / or edge servers. The network adapter card or network interface in each computing / processing device receives the computer-readable program instructions from the network and forwards the computer-readable program instructions to be stored in the computer-readable storage medium in each computing / processing device.

[0118] The computer program instructions for performing the operations of the present disclosure may be assembly instructions, instruction set architecture (ISA) instructions, machine instructions, machine-dependent instructions, microcode, firmware instructions, state setting data, or source code or object code written in any combination of one or more programming languages, including object-oriented programming languages ​​such as Smalltalk, C++, and conventional procedural programming languages ​​such as "C" language or similar programming languages. Computer-readable program instructions may be executed entirely on a user's computer, partially on a user's computer, as an independent software package, partially on a user's computer, partially on a remote computer, or entirely on a remote computer or server. In the case of a remote computer, the remote computer may be connected to the user's computer via any type of network, including a local area network (LAN) or a wide area network (WAN), or may be connected to an external computer (e.g., utilizing an Internet service provider to connect via the Internet). In some embodiments, an electronic circuit, such as a programmable logic circuit, a field programmable gate array (FPGA), or a programmable logic array (PLA), may be personalized by utilizing the state information of the computer-readable program instructions. The electronic circuit may execute the computer-readable program instructions, thereby realizing various aspects of the present disclosure.

[0119] Various aspects of the present disclosure are described herein with reference to flowcharts and / or block diagrams of methods, apparatus (systems), and computer program products according to embodiments of the present disclosure. It should be understood that each block of the flowcharts and / or block diagrams, and combinations of blocks in the flowcharts and / or block diagrams, can be implemented by computer-readable program instructions.

[0120] These computer-readable program instructions can be provided to a processor of a general-purpose computer, a special-purpose computer, or other programmable data processing device, thereby producing a machine, so that when these instructions are executed by the processor of the computer or other programmable data processing device, a device is generated that implements the functions / actions specified in one or more blocks in the flowchart and / or block diagram. These computer-readable program instructions can also be stored in a computer-readable storage medium, where these instructions cause the computer, programmable data processing device, and / or other device to operate in a specific manner. Thus, the computer-readable medium storing the instructions comprises an article of manufacture that includes instructions for implementing various aspects of the functions / actions specified in one or more blocks in the flowchart and / or block diagram.

[0121] Computer-readable program instructions may also be loaded onto a computer, other programmable data processing apparatus, or other device so that a series of operational steps are performed on the computer, other programmable data processing apparatus, or other device to produce a computer-implemented process, thereby causing the instructions executed on the computer, other programmable data processing apparatus, or other device to implement the functions / actions specified in one or more blocks in the flowchart and / or block diagram.

[0122] The flow charts and block diagrams in the accompanying drawings show the possible architecture, functions and operations of the systems, methods and computer program products according to multiple embodiments of the present disclosure. In this regard, each box in the flow chart or block diagram can represent a part of a module, program segment or instruction, and the part of the module, program segment or instruction contains one or more executable instructions for realizing the prescribed logical function. In some alternative implementations, the functions marked in the box can also occur in a sequence different from that marked in the accompanying drawings. For example, two consecutive boxes can actually be executed substantially in parallel, and they can sometimes be executed in the opposite order, depending on the functions involved. It should also be noted that each box in the block diagram and / or flow chart, and the combination of the boxes in the block diagram and / or flow chart can be implemented by a dedicated hardware-based system that performs the prescribed function or action, or can be implemented by a combination of dedicated hardware and computer instructions.

[0123] While various embodiments of the present disclosure have been described above, the foregoing description is intended to be illustrative, non-exhaustive, and not limited to the disclosed embodiments. Many modifications and variations will be apparent to those skilled in the art without departing from the scope and spirit of the described embodiments. The terminology used herein is selected to best explain the principles of the embodiments, their practical applications, or technical improvements to existing technologies, or to enable others skilled in the art to understand the embodiments disclosed herein.

Claims

1. A Doppler omnidirectional beacon signal hybrid modulation method, characterized in that: include: respectively configuring corresponding preset odd mixing functions and preset even mixing functions in a plurality of odd-numbered antenna groups and a plurality of even-numbered antenna groups; configuring a first preset additional odd modulation function and a first preset additional even modulation function on one side of the preset odd mixing function and the preset even mixing function, respectively, to obtain a first upper sideband carrier signal and a first lower sideband carrier signal corresponding to the Doppler omnidirectional beacon; configuring a second preset additional odd modulation function and a second preset additional even modulation function on the other side of the preset odd mixing function and the preset even mixing function, respectively, and performing anti-phase modulation on the second preset additional odd modulation function and the second preset additional even modulation function according to a set modulation index, respectively, to obtain a second upper sideband carrier signal and a second lower sideband carrier signal corresponding to the Doppler omnidirectional beacon; The first upper sideband carrier signal and the second upper sideband carrier signal are configured as upper sideband carrier signals, and the first lower sideband carrier signal and the second lower sideband carrier signal are configured as lower sideband carrier signals.

2. The Doppler omnidirectional beacon signal hybrid modulation method according to claim 1, characterized in that: Also includes: After the upper sideband carrier signal or the lower sideband carrier signal corresponding to a first odd-numbered antenna in the multiple odd-numbered antenna groups is transmitted, controlling the first odd-numbered antenna to be turned off, inversely modulating the carrier phase of the second upper sideband carrier signal or the second lower sideband carrier signal corresponding to the first odd-numbered antenna to a preset modulation phase of the first upper sideband carrier signal or the first sideband carrier signal corresponding to the first odd-numbered antenna, controlling the first odd-numbered antenna to be turned off, and controlling the second odd-numbered antenna in the multiple odd-numbered antenna groups to be turned on; After the upper sideband carrier signal or the lower sideband carrier signal corresponding to the second odd-numbered antenna in the multiple odd-numbered antenna groups is transmitted, controlling the second odd-numbered antenna to be turned off, inversely modulating the carrier phase of the second upper sideband carrier signal or the second lower sideband carrier signal corresponding to the second odd-numbered antenna to the preset modulation phase of the first upper sideband carrier signal or the first sideband carrier signal corresponding to the second odd-numbered antenna, controlling the second odd-numbered antenna to be turned off, and controlling the third odd-numbered antenna in the multiple odd-numbered antenna groups to be turned on; Until the upper sideband carrier signals or lower sideband carrier signals corresponding to all odd-numbered antennas in the plurality of odd-numbered antenna groups are completely transmitted.

3. The Doppler omnidirectional beacon signal hybrid modulation method according to claim 1, wherein: Also includes: After a preset delay time after the first odd-numbered antenna in the plurality of odd-numbered antenna groups transmits or operates, or after a preset delay time has passed, the first even-numbered antenna in the plurality of even-numbered antenna groups is turned on; After the upper sideband carrier signal or the lower sideband carrier signal corresponding to the first even-numbered antenna in the multiple even-numbered antenna groups is transmitted, the first even-numbered antenna is controlled to be turned off, the carrier phase of the second upper sideband carrier signal or the second lower sideband carrier signal corresponding to the first even-numbered antenna is inversely modulated to the preset modulation phase of the first upper sideband carrier signal or the first sideband carrier signal corresponding to the first even-numbered antenna, the first even-numbered antenna is controlled to be turned off, and the second even-numbered antenna in the multiple even-numbered antenna groups is controlled to be turned on; After the upper sideband carrier signal or the lower sideband carrier signal corresponding to the second even-numbered antenna in the multiple even-numbered antenna groups is transmitted, controlling the second even-numbered antenna to be turned off, inversely modulating the carrier phase of the second upper sideband carrier signal or the second lower sideband carrier signal corresponding to the second even-numbered antenna to the preset modulation phase of the first upper sideband carrier signal or the first sideband carrier signal corresponding to the second even-numbered antenna, controlling the second even-numbered antenna to be turned off, and controlling the third even-numbered antenna in the multiple even-numbered antenna groups to be turned on; Until the upper sideband carrier signals or lower sideband carrier signals corresponding to all even-numbered antennas in the multiple even-numbered antenna groups are completely transmitted.

4. The Doppler omnidirectional beacon signal hybrid modulation method according to any one of claims 1 to 3, characterized in that: After the upper sideband carrier signal corresponding to all odd antennas in the multiple odd antenna groups is completed, all odd antennas in the multiple odd antenna groups switch to the lower sideband carrier signal transmission; or, after the lower sideband carrier signal corresponding to all odd antennas in the multiple odd antenna groups is completed, all odd antennas in the multiple odd antenna groups switch to the upper sideband carrier signal transmission.

5. The Doppler omnidirectional beacon signal hybrid modulation method according to any one of claims 1 to 3, characterized in that: After the upper sideband carrier signals corresponding to all even antennas in the multiple even antenna groups are transmitted, all even antennas in the multiple even antenna groups switch to transmitting the lower sideband carrier signals; or, after the lower sideband carrier signals corresponding to all even antennas in the multiple even antenna groups are transmitted, all even antennas in the multiple even antenna groups switch to transmitting the upper sideband carrier signals.

6. The Doppler omnidirectional beacon signal hybrid modulation method according to claim 4, characterized in that: After the upper sideband carrier signals corresponding to all even antennas in the multiple even antenna groups are transmitted, all even antennas in the multiple even antenna groups switch to transmitting the lower sideband carrier signals; or, after the lower sideband carrier signals corresponding to all even antennas in the multiple even antenna groups are transmitted, all even antennas in the multiple even antenna groups switch to transmitting the upper sideband carrier signals.

7. The Doppler omnidirectional beacon signal hybrid modulation method according to claim 4, characterized in that: After the upper sideband carrier signals corresponding to all odd-numbered antennas in the plurality of odd-numbered antenna groups are completed, all odd-numbered antennas in the plurality of odd-numbered antenna groups switch to transmitting the lower sideband carrier signals, and respectively adjust the first frequency and the first preset modulation phase corresponding to the upper sideband carrier signal to the second frequency and the second preset modulation phase corresponding to the lower sideband carrier signal; Or, after the lower sideband carrier signal corresponding to all odd antennas in the multiple odd antenna groups is completed, all odd antennas in the multiple odd antenna groups switch to the upper sideband carrier signal for transmission, and the second frequency and second preset modulation phase corresponding to the lower sideband carrier signal are adjusted to the first frequency and first preset modulation phase corresponding to the upper sideband carrier signal.

8. The Doppler omnidirectional beacon signal hybrid modulation method according to claim 6, characterized in that: After the upper sideband carrier signals corresponding to all odd-numbered antennas in the plurality of odd-numbered antenna groups are completed, all odd-numbered antennas in the plurality of odd-numbered antenna groups switch to transmitting the lower sideband carrier signals, and respectively adjust the first frequency and the first preset modulation phase corresponding to the upper sideband carrier signal to the second frequency and the second preset modulation phase corresponding to the lower sideband carrier signal; Or, after the lower sideband carrier signal corresponding to all odd antennas in the multiple odd antenna groups is completed, all odd antennas in the multiple odd antenna groups switch to the upper sideband carrier signal for transmission, and the second frequency and second preset modulation phase corresponding to the lower sideband carrier signal are adjusted to the first frequency and first preset modulation phase corresponding to the upper sideband carrier signal.

9. The Doppler omnidirectional beacon signal hybrid modulation method according to any one of claims 7 or 8, characterized in that: The first frequency is configured as the center frequency of the Doppler omnidirectional beacon station plus a set carrier frequency of the subcarrier signal.

10. The Doppler omnidirectional beacon signal hybrid modulation method according to any one of claims 7 or 8, characterized in that: The second frequency is configured as the center frequency of the Doppler omnidirectional beacon station minus the set carrier frequency of the subcarrier signal.

11. The Doppler omnidirectional beacon signal hybrid modulation method according to claim 9, characterized in that: The second frequency is configured as the center frequency of the Doppler omnidirectional beacon station minus the set carrier frequency of the subcarrier signal.

12. The Doppler omnidirectional beacon signal hybrid modulation method according to any one of claims 1-3, 6-8, and 11, characterized in that: Also includes: The number M of antennas is obtained and the antennas are numbered. When an antenna numbered N transmits an upper sideband carrier signal or an upper sideband carrier signal, the antennas spatially symmetrical thereto are numbered as (N±M / 2).

13. The Doppler omnidirectional beacon signal hybrid modulation method according to claim 4, characterized in that: Also includes: The number M of antennas is obtained and the antennas are numbered. When an antenna numbered N transmits an upper sideband carrier signal or an upper sideband carrier signal, the antennas spatially symmetrical thereto are numbered as (N±M / 2).

14. The hybrid modulation method for Doppler omnidirectional beacon signal according to claim 5, characterized in that: Also includes: The number M of antennas is obtained and the antennas are numbered. When an antenna numbered N transmits an upper sideband carrier signal or an upper sideband carrier signal, the antennas spatially symmetrical thereto are numbered as (N±M / 2).

15. The Doppler omnidirectional beacon signal hybrid modulation method according to claim 9, characterized in that: Also includes: The number M of antennas is obtained and the antennas are numbered. When an antenna numbered N transmits an upper sideband carrier signal or an upper sideband carrier signal, the antennas spatially symmetrical thereto are numbered as (N±M / 2).

16. The Doppler omnidirectional beacon signal hybrid modulation method according to claim 10, characterized in that: Also includes: The number M of antennas is obtained and the antennas are numbered. When an antenna numbered N transmits an upper sideband carrier signal or an upper sideband carrier signal, the antennas spatially symmetrical thereto are numbered as (N±M / 2).

17. The Doppler omnidirectional beacon signal hybrid modulation method according to any one of claims 1-3, 6-8, 11, and 13-16, characterized in that: The first preset additional odd modulation function, the first preset additional even modulation function, the second preset additional odd modulation function and the second preset additional even modulation function are respectively configured with an adjustable coefficient; The amplitudes corresponding to the first preset additional odd modulation function, the first preset additional even modulation function, the second preset additional odd modulation function and the second preset additional even modulation function are adjusted respectively by using the corresponding adjustable coefficients.

18. The Doppler omnidirectional beacon signal hybrid modulation method according to claim 4, characterized in that: The first preset additional odd modulation function, the first preset additional even modulation function, the second preset additional odd modulation function and the second preset additional even modulation function are respectively configured with an adjustable coefficient; The amplitudes corresponding to the first preset additional odd modulation function, the first preset additional even modulation function, the second preset additional odd modulation function and the second preset additional even modulation function are adjusted respectively by using the corresponding adjustable coefficients.

19. The Doppler omnidirectional beacon signal hybrid modulation method according to claim 5, characterized in that: The first preset additional odd modulation function, the first preset additional even modulation function, the second preset additional odd modulation function and the second preset additional even modulation function are respectively configured with an adjustable coefficient; The amplitudes corresponding to the first preset additional odd modulation function, the first preset additional even modulation function, the second preset additional odd modulation function and the second preset additional even modulation function are adjusted respectively by using the corresponding adjustable coefficients.

20. The Doppler omnidirectional beacon signal hybrid modulation method according to claim 9, characterized in that: The first preset additional odd modulation function, the first preset additional even modulation function, the second preset additional odd modulation function and the second preset additional even modulation function are respectively configured with an adjustable coefficient; The amplitudes corresponding to the first preset additional odd modulation function, the first preset additional even modulation function, the second preset additional odd modulation function and the second preset additional even modulation function are adjusted respectively by using the corresponding adjustable coefficients.

21. The Doppler omnidirectional beacon signal hybrid modulation method according to claim 10, characterized in that: The first preset additional odd modulation function, the first preset additional even modulation function, the second preset additional odd modulation function and the second preset additional even modulation function are respectively configured with an adjustable coefficient; The amplitudes corresponding to the first preset additional odd modulation function, the first preset additional even modulation function, the second preset additional odd modulation function and the second preset additional even modulation function are adjusted respectively by using the corresponding adjustable coefficients.

22. The Doppler omnidirectional beacon signal hybrid modulation method according to claim 12, characterized in that: The first preset additional odd modulation function, the first preset additional even modulation function, the second preset additional odd modulation function and the second preset additional even modulation function are respectively configured with an adjustable coefficient; The amplitudes corresponding to the first preset additional odd modulation function, the first preset additional even modulation function, the second preset additional odd modulation function and the second preset additional even modulation function are adjusted respectively by using the corresponding adjustable coefficients.

23. The Doppler omnidirectional beacon signal hybrid modulation method according to any one of claims 1-3, 6-8, 11, 13-16, and 18-22, characterized in that: The performing inverse phase modulation on the second preset additional odd modulation function and the second preset additional even modulation function according to the set modulation degree respectively includes: Determine or obtain a first preset modulation phase and a second preset modulation phase corresponding to the first upper sideband carrier signal and the first lower sideband carrier signal respectively; According to the set modulation index, 180 is added to the first preset modulation phase and the second preset modulation phase. 0 , completing the inverse modulation of the second preset additional odd modulation function and the second preset additional even modulation function.

24. The Doppler omnidirectional beacon signal hybrid modulation method according to claim 4, characterized in that: The method of performing inverse phase modulation on the second preset additional odd modulation function and the second preset additional even modulation function respectively according to the set modulation degree includes: Determine or obtain a first preset modulation phase and a second preset modulation phase corresponding to the first upper sideband carrier signal and the first lower sideband carrier signal respectively; According to the set modulation index, 180 is added to the first preset modulation phase and the second preset modulation phase. 0 , completing the inverse modulation of the second preset additional odd modulation function and the second preset additional even modulation function.

25. The Doppler omnidirectional beacon signal hybrid modulation method according to claim 5, characterized in that: The method of performing inverse phase modulation on the second preset additional odd modulation function and the second preset additional even modulation function respectively according to the set modulation degree includes: Determine or obtain a first preset modulation phase and a second preset modulation phase corresponding to the first upper sideband carrier signal and the first lower sideband carrier signal respectively; According to the set modulation index, 180 is added to the first preset modulation phase and the second preset modulation phase. 0 , completing the inverse modulation of the second preset additional odd modulation function and the second preset additional even modulation function.

26. The Doppler omnidirectional beacon signal hybrid modulation method according to claim 9, characterized in that: The method of performing inverse phase modulation on the second preset additional odd modulation function and the second preset additional even modulation function respectively according to the set modulation degree includes: Determine or obtain a first preset modulation phase and a second preset modulation phase corresponding to the first upper sideband carrier signal and the first lower sideband carrier signal respectively; According to the set modulation index, 180 is added to the first preset modulation phase and the second preset modulation phase. 0 , completing the inverse modulation of the second preset additional odd modulation function and the second preset additional even modulation function.

27. The Doppler omnidirectional beacon signal hybrid modulation method according to claim 10, characterized in that: The method of performing inverse phase modulation on the second preset additional odd modulation function and the second preset additional even modulation function respectively according to the set modulation degree includes: Determine or obtain a first preset modulation phase and a second preset modulation phase corresponding to the first upper sideband carrier signal and the first lower sideband carrier signal respectively; According to the set modulation index, 180 is added to the first preset modulation phase and the second preset modulation phase. 0 , completing the inverse modulation of the second preset additional odd modulation function and the second preset additional even modulation function.

28. The Doppler omnidirectional beacon signal hybrid modulation method according to claim 12, characterized in that: The method of performing inverse phase modulation on the second preset additional odd modulation function and the second preset additional even modulation function respectively according to the set modulation degree includes: Determine or obtain a first preset modulation phase and a second preset modulation phase corresponding to the first upper sideband carrier signal and the first lower sideband carrier signal respectively; According to the set modulation index, 180 is added to the first preset modulation phase and the second preset modulation phase. 0 , completing the inverse modulation of the second preset additional odd modulation function and the second preset additional even modulation function.

29. The Doppler omnidirectional beacon signal hybrid modulation method according to claim 17, wherein: The method of performing inverse phase modulation on the second preset additional odd modulation function and the second preset additional even modulation function respectively according to the set modulation degree includes: Determine or obtain a first preset modulation phase and a second preset modulation phase corresponding to the first upper sideband carrier signal and the first lower sideband carrier signal respectively; According to the set modulation index, 180 is added to the first preset modulation phase and the second preset modulation phase. 0 , completing the inverse modulation of the second preset additional odd modulation function and the second preset additional even modulation function.

30. The Doppler omnidirectional beacon signal hybrid modulation method according to claim 23, wherein the set modulation degree is configured to be 100%.

31. The Doppler omnidirectional beacon signal hybrid modulation method according to any one of claims 24 to 29, wherein the set modulation degree is configured to be 100%.

32. The Doppler omnidirectional beacon signal hybrid modulation method according to any one of claims 1-3, 6-8, 11, 13-16, 18-22, and 24-30, characterized in that: The preset odd mixing function, the first preset additional odd modulation function, and the second preset additional odd modulation function are respectively configured in the form of sin functions; The preset even mixing function, the first preset additional even modulation function, and the second preset additional even modulation function are respectively configured in the form of cosine functions.

33. The Doppler omnidirectional beacon signal hybrid modulation method according to claim 4, characterized in that: The preset odd mixing function, the first preset additional odd modulation function, and the second preset additional odd modulation function are respectively configured in the form of sin functions; The preset even mixing function, the first preset additional even modulation function, and the second preset additional even modulation function are respectively configured in the form of cosine functions.

34. The Doppler omnidirectional beacon signal hybrid modulation method according to claim 5, characterized in that: The preset odd mixing function, the first preset additional odd modulation function, and the second preset additional odd modulation function are respectively configured in the form of sin functions; The preset even mixing function, the first preset additional even modulation function, and the second preset additional even modulation function are respectively configured in the form of cosine functions.

35. The Doppler omnidirectional beacon signal hybrid modulation method according to claim 9, wherein: The preset odd mixing function, the first preset additional odd modulation function, and the second preset additional odd modulation function are respectively configured in the form of sin functions; The preset even mixing function, the first preset additional even modulation function, and the second preset additional even modulation function are respectively configured in the form of cosine functions.

36. The Doppler omnidirectional beacon signal hybrid modulation method according to claim 10, characterized in that: The preset odd mixing function, the first preset additional odd modulation function, and the second preset additional odd modulation function are respectively configured in the form of sin functions; The preset even mixing function, the first preset additional even modulation function, and the second preset additional even modulation function are respectively configured in the form of cosine functions.

37. The Doppler omnidirectional beacon signal hybrid modulation method according to claim 12, characterized in that: The preset odd mixing function, the first preset additional odd modulation function, and the second preset additional odd modulation function are respectively configured in the form of sin functions; The preset even mixing function, the first preset additional even modulation function, and the second preset additional even modulation function are respectively configured in the form of cosine functions.

38. The Doppler omnidirectional beacon signal hybrid modulation method according to claim 17, wherein: The preset odd mixing function, the first preset additional odd modulation function, and the second preset additional odd modulation function are respectively configured in the form of sin functions; The preset even mixing function, the first preset additional even modulation function, and the second preset additional even modulation function are respectively configured in the form of cosine functions.

39. The Doppler omnidirectional beacon signal hybrid modulation method according to claim 23, wherein: The preset odd mixing function, the first preset additional odd modulation function, and the second preset additional odd modulation function are respectively configured in the form of sin functions; The preset even mixing function, the first preset additional even modulation function, and the second preset additional even modulation function are respectively configured in the form of cosine functions.

40. The Doppler omnidirectional beacon signal hybrid modulation method according to claim 31, characterized in that: The preset odd mixing function, the first preset additional odd modulation function, and the second preset additional odd modulation function are respectively configured in the form of sin functions; The preset even mixing function, the first preset additional even modulation function, and the second preset additional even modulation function are respectively configured in the form of cosine functions.

41. A Doppler omnidirectional beacon signal hybrid modulation system, characterized in that: include: A first configuration unit is configured to configure corresponding preset odd mixing functions and preset even mixing functions in a plurality of odd antenna groups and a plurality of even antenna groups respectively; configuring a first preset additional odd modulation function and a first preset additional even modulation function on one side of a preset odd mixing function and a preset even mixing function, respectively, to obtain a first upper sideband carrier signal and a first lower sideband carrier signal corresponding to the Doppler omnidirectional beacon; a second configuration unit, configured to respectively configure a second preset additional odd modulation function and a second preset additional even modulation function on the other side of the preset odd mixing function and the preset even mixing function, and respectively perform anti-phase modulation on the second preset additional odd modulation function and the second preset additional even modulation function according to a set modulation index to obtain a second upper sideband carrier signal and a second lower sideband carrier signal corresponding to the Doppler omnidirectional beacon; The third configuration unit is configured to configure the first upper sideband carrier signal and the second upper sideband carrier signal as upper sideband carrier signals, and configure the first lower sideband carrier signal and the second lower sideband carrier signal as lower sideband carrier signals.

42. An electronic device, characterized in that include: processor; a memory for storing processor-executable instructions; The processor is configured to call the instructions stored in the memory to execute the Doppler omnidirectional beacon signal hybrid modulation method according to any one of claims 1 to 40.

43. A computer-readable storage medium having computer program instructions stored thereon, characterized in that: When the computer program instructions are executed by a processor, the Doppler omnidirectional beacon signal hybrid modulation method according to any one of claims 1 to 40 is implemented.

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