Dual-body antenna scattering communication system and method

Abstract

The application provides a kind of based on dual-body system antenna scattering communication system and method, including A type equipment and B type equipment, A type equipment adopts parabolic antenna, B type equipment adopts phased array antenna;A type equipment adopts dual-frequency source, receiver and transmitter adopt dual-frequency source, transceiver works at different frequencies;Transmitter sends signal according to communication waveform time-sharing, receiver is always in the working state of starting;B type equipment adopts phased array antenna system, and the time-sharing work of different frequency is received / transmitted;Transmission layer is mainly in time division multiple access mode, utilizes the beam switching of B type equipment phased array antenna, and the time-sharing multiplexing of A-B, B-C communication link is carried out;C node equipment is same with B type equipment, and C node equipment is as one of the nodes of multipoint communication.The dual-body system antenna scattering system used in the application can effectively compatible with existing parabolic antenna system scattering communication equipment, and can also realize point-to-multipoint communication.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of tropospheric scatter communication, in particular to a dual-system antenna-based scatter communication system and method. BACKGROUND

[0002] In modern conventional large-scale tropospheric scatter communication systems, single-system parabolic antennas are used, and the scatter communication using the parabolic communication system cannot realize one-to-multiple point communication. In recent years, a phased array antenna scatter communication system has appeared, which can realize one-to-multiple point communication mode. However, it cannot be compatible with the existing large number of scatter communication equipment of parabolic antenna system.

[0003] In the patent document with the publication number CN114497983A, a blind alignment method of a scatter antenna and a scatter communication system are disclosed. The method is applied to a first controller included in a first communication station, and includes: controlling a first scatter antenna module of the first communication station to rotate at a first speed; when the first scatter antenna module receives a first specified signal, calculating the position of a second communication station according to the first specified signal, and controlling the first scatter antenna module to point to a second scatter antenna module of the second communication station according to the position of the second communication station, so as to align the first scatter antenna module with the second scatter antenna module; wherein the second scatter communication module rotates at a second speed, the first speed is greater than the second speed, and the first scatter antenna module receives the first specified signal at least once when the second scatter antenna module rotates one circle at the second speed.

[0004] For the related technology in the above, the inventors believe that the scatter communication using the parabolic communication system cannot realize one-to-multiple point communication and cannot be compatible with the existing large number of scatter communication equipment of parabolic antenna system, therefore, it is necessary to propose a new technical solution to improve the above technical problems. SUMMARY

[0005] In view of the defects in the prior art, the purpose of the present application is to provide a dual-system antenna-based scatter communication system and method.

[0006] According to the dual-system antenna-based scatter communication system provided by the present application, the A-type device uses a parabolic antenna, and the B-type device uses a phased array antenna;

[0007] The A-type device uses a dual-frequency source, and the receiver and the transmitter use a dual-frequency source, and the transceiver works at different frequencies; the transmitter sends signals according to the communication waveform in time division, and the receiver is always in a working state;

[0008] The B-type device adopts a phased array antenna system, and transmits / receives different frequency-divided time work; the transmission layer is a time division multiple access mode, and the beam switching of the phased array antenna of the B-type device is used to perform time division multiplexing of the A-type device-B-type device, B-type device-C node device communication link.

[0009] The C node device adopts a B-type device, and the C node device is one of the nodes of the multi-point communication.

[0010] Preferably, the A-type device includes a host, a power amplifier unit, and an antenna and servo; wherein the host performs data processing and baseband signal processing in the system, the power amplifier unit amplifies the signal power of the transmitter, the antenna and servo provide the conversion of electrical energy to electromagnetic waves for radio frequency signal wireless transmission, and the antenna and servo perform mechanical scanning of the antenna.

[0011] Preferably, the antenna and servo of the A-type device include a feed network, an antenna reflector, and a servo control device; wherein the feed network provides power supply for the antenna, the antenna reflector provides electromagnetic reflection feedback function for the parabolic antenna, and the servo control device controls the rotation of the turntable to perform antenna alignment.

[0012] Preferably, the B-type device includes a host, an antenna attitude stabilization platform, and a phased array antenna; the host performs data processing and baseband signal processing in the system, the antenna attitude stabilization platform offsets the shaking caused by the external environment of the phased array antenna, the phased array antenna is an array antenna composed of multiple antennas, and the beam pointing direction is changed through electrical scanning; and the conversion of electrical energy to electromagnetic waves is provided for radio frequency signal wireless transmission.

[0013] Preferably, the phased array antenna includes an antenna array, a radio frequency front end, and a power division and combination network; the antenna array forms the phased array antenna, the radio frequency front end performs the receiving and transmitting amplification of the radio frequency signal, and the power division and combination network performs the conversion connection between the phased array multi-element and a single feed source.

[0014] Preferably, the host of the A-type device and the B-type device includes a panel unit, a master control unit, a baseband unit, and a channel unit; wherein the panel unit provides some unit operation interfaces, the master control unit provides control interfaces and instructions for various switches of the system, the baseband unit performs baseband signal processing, and the channel unit performs up-conversion and down-conversion of the radio signal and signal amplification.

[0015] Preferably, the receiving frequency F2 of the A-type device is 4.X-5.X GHz, the transmitting frequency F1 is 5.X-6.X GHz, and the transmitter transmits signals; and the receiver is always turned on and works.

[0016] Preferably, the B-type device adopts a time division multiplexing mode, a fast narrow beam switching technology based on a phased array antenna, and a hybrid TDMA multiple access technology, a transmission layer is designed with a frame length; a frame format is designed with transmission protection intervals and beam switching protection intervals for different transmission distances, A-B and B-C communication is obtained.

[0017] The application further provides a dual-system antenna scattering communication method, which applies the dual-system antenna scattering communication system.

[0018] Step S1: after the A-type device and the B-type device are aligned through automatic alignment technology, the A-type device antenna is not moved, and the B-type device is aligned with the C node device through fast switching of the phased array beam;

[0019] Step S2: the A-type device transmits a signal at T1 time with F1 frequency, and receives a signal at T2 time with F2 frequency; the B-type device node corresponds to the A-type device, receives the signal with F1 frequency transmitted by the A-type device at T1 time, and transmits a signal with F2 frequency at T2 time;

[0020] Step S3: the B-type device transmits a signal with F2 frequency at T3 time, the C node device receives the signal with F2 frequency transmitted by the B-type device at T3 time, the C node device transmits a signal with F1 frequency at T4 time, and the B-type device receives the signal with F1 frequency transmitted by the C node device at T4 time;

[0021] Step S4: after step S2 and step S3, the B-type device can realize communication with the A-type device and the C node device at the same time, so that point-to-multipoint communication is realized.

[0022] Compared with the prior art, the application has the following beneficial effects:

[0023] 1. The dual-system antenna scattering system can effectively compatible with the existing parabolic antenna system scattering communication equipment, and realize point-to-multipoint communication;

[0024] 2. The dual-system antenna scattering system is introduced based on the traditional single-system scattering communication system, and stratospheric point-to-multipoint scattering communication is realized;

[0025] 3. The application can compatible with a large number of existing parabolic antenna system scattering communication equipment and realize stratospheric point-to-multipoint communication, and has great application value;

[0026] 4. The application provides a dual-system antenna scattering communication system; the application effectively realizes stratospheric point-to-multipoint scattering communication, and can realize frequency division mode communication and time division mode communication. BRIEF DESCRIPTION OF DRAWINGS

[0027] Other features, objects, and advantages of the application will become more apparent from the following detailed description of non-limiting embodiments thereof, when read in conjunction with the accompanying drawings:

[0028] Figure 1 A-type device composition diagram of the present application;

[0029] Figure 2 B-type device composition diagram of the present application;

[0030] Figure 3 Point-to-multipoint communication diagram of the dual-mode antenna of the present application. DETAILED DESCRIPTION

[0031] The present application will be described in detail below with specific embodiments. The following embodiments will help those skilled in the art to further understand the present application, but do not limit the present application in any form. It should be noted that for those skilled in the art, without departing from the concept of the present application, a number of changes and improvements can be made. These are within the scope of the present application.

[0032] Example 1

[0033] According to the dual-mode antenna scattering communication system provided by the present application, the A-type device adopts a parabolic antenna, and the B-type device adopts a phased array antenna;

[0034] The A-type device adopts a dual-frequency source, and the receiver and the transmitter adopt a dual-frequency source, and the transceiver works at different frequencies; the transmitter sends signals according to the communication waveform in time division, and the receiver is always in the working state;

[0035] The B-type device adopts a phased array antenna system, and the receiving / transmitting works in time division at different frequencies; the transmission layer is a time division multiple access mode, and the beam switching of the phased array antenna of the B-type device is used to realize time division multiplexing of the communication link between the A-type device and the B-type device and the B-type device and the C-node device;

[0036] The C-node device adopts a B-type device, and the C-node device is one of the nodes of the multipoint communication.

[0037] The A-type device includes a host, a power amplifier unit, an antenna, and a servo; the host performs data processing and baseband signal processing in the system, the power amplifier unit amplifies the signal of the transmitter with high power, the antenna and the servo convert the radio frequency signal into electromagnetic wave for wireless transmission, and the antenna and the servo perform mechanical scanning of the antenna.

[0038] The antenna and servo of the A-type device include a feed network, an antenna reflector and a servo control device; the feed network provides feed for the antenna, the antenna reflector provides electromagnetic reflection feedback for the parabolic antenna, and the servo control device controls the rotation of the turntable to perform antenna alignment.

[0039] The B-type device includes a host, an antenna attitude stabilization platform and a phased array antenna; the host performs data processing and baseband signal processing, the antenna attitude stabilization platform offsets the shaking caused by the external environment of the phased array antenna, and the phased array antenna is an array antenna composed of multiple antennas and changes the beam pointing direction through electrical scanning; radio frequency signal wireless transmission is performed to provide conversion of electrical energy into electromagnetic waves.

[0040] The phased array antenna includes an antenna array, a radio frequency front end and a power division and combination network; the antenna array forms the phased array antenna, the radio frequency front end performs radio frequency signal transmission and amplification, and the power division and combination network performs conversion connection between the phased array multi-array element and a single feed.

[0041] The host of the A-type device and the B-type device includes a panel unit, a main control unit, a baseband unit and a channel unit; the panel unit provides some unit operation interfaces, the main control unit provides control interfaces and instructions for various switches of the system, the baseband unit performs baseband signal processing, and the channel unit performs up-conversion and down-conversion of radio signals and signal amplification.

[0042] The receiving frequency F2 of the A-type device is 4.X-5.XGHz, the transmitting frequency F1 is 5.X-6.XGHz, and the transmitter transmits signals; the receiver is always turned on and works.

[0043] The B-type device adopts a time division multiplexing mode, a fast narrow beam switching technology based on a phased array antenna, and a hybrid TDMA multiple access technology, and the transmission layer is designed with a frame length; when designing the frame format, the transmission protection interval and the beam switching protection interval for different transmission distances are considered, and A-B and B-C communication is obtained.

[0044] The application further provides a dual-system antenna scattering communication method, which applies the dual-system antenna scattering communication system.

[0045] Step S1: After the A-type device and the B-type device are aligned through automatic alignment technology, the A-type device antenna is stationary, and the B-type device is aligned with the C node device through phased array beam fast switching;

[0046] Step S2: the transmitting frequency of the A-type device is F1, and the receiving frequency is F2; the A-type device transmits signals with the frequency F1 at T1 and receives signals with the frequency F2 at T2; the B-type device node corresponds to the A-type device, receives signals with the frequency F1 transmitted by the A-type device at T1, and transmits signals with the frequency F2 at T2;

[0047] Step S3: the B-type device uses F2 sending frequency at T3 time, the C-node device receives the signal of F2 frequency sent by the B-type device at T3 time, the C-node device sends F1 frequency signal at T4 time, and the B-type device receives the sending signal of F1 frequency sent by the C-node device at T4 time.

[0048] Step S4: after step S2 and step S3, the B-type device can realize the communication with the A-type device and the C-node device simultaneously, thereby realizing the point-to-multipoint communication.

[0049] Example 2

[0050] Embodiment 2 is a preferred example of embodiment 1, which is used to more specifically illustrate the present application.

[0051] The purpose of the present application is to realize the troposphere scatter communication one-to-multipoint communication system by using the dual-system antenna under the compatibility of the existing large number of parabolic antenna system scatter communication system.

[0052] The present application contains A and B two device types, wherein the A-type device is composed of a host, a power amplifier unit, an antenna and a servo three parts, and a parabolic antenna is adopted; the B-type device is composed of a host, an antenna attitude stabilization platform and a phased array antenna three parts.

[0053] The host of the two devices adopts a unified design, and contains four types of board cards, namely a panel unit, a main control unit, a baseband unit and a channel unit.

[0054] The A-type device adopts a dual-frequency source, and the receiver and the transmitter adopt a dual-frequency source, and the transceiving works at different frequencies; the transmitter sends signals according to the communication waveform in time division, and the receiver is always in the working state. Thus, the "frequency division + time division" hybrid duplex mode is realized.

[0055] The B-type device adopts a phased array antenna system, and the receiving / transmitting works in different frequency division time. The transmission layer mainly adopts the time division multiple access mode, and utilizes the beam rapid switching advantage of the phased array antenna of the B-type device to realize the time division multiplexing of the A-B and B-C communication links; thus, the point-to-multipoint communication demand is realized.

[0056] According to the above parabolic antenna system of the A-type device and the phased array antenna system of the B-type device, the compatibility with the existing parabolic system scatter communication device can be realized, and the point-to-multipoint scatter communication mode can also be realized.

[0057] The present application provides a dual-system antenna scatter communication system. The present application effectively realizes the troposphere point-to-multipoint scatter communication, and can realize both the frequency division mode communication and the time division mode communication.

[0058] This invention consists of a type A device and a type B device. For ease of explanation, a C node is introduced, which is identical to the type B device. The type A device uses a high-gain parabolic antenna, the type B device uses a large-scale phased array antenna, and the C device serves as one of the nodes in multi-point communication. Figure 3 As shown.

[0059] like Figure 1 The Type A device shown consists of three parts: an antenna and servo unit, a power amplifier unit, and a host unit. The antenna is a parabolic antenna. The antenna servo unit consists of a feed network, an antenna reflector, and a servo control unit. The power amplifier unit consists of a high-power amplifier. The host unit consists of a channel unit, a baseband unit, and a main control unit.

[0060] like Figure 2 The Type B device shown consists of two parts: a phased array antenna and an antenna attitude stabilization platform, and a main unit. The phased array antenna comprises an antenna array, an RF front-end, and a power divider / combiner network. The main unit consists of a channel unit, a baseband unit, and a main control unit. The antenna attitude stabilization platform enables the Type B device to be used in dynamic operating environments such as vehicle-mounted and shipboard applications.

[0061] Type A equipment receives signals at frequencies of 4.X-5.X GHz and transmits signals at frequencies of 5.X-6.X GHz. The transmitter sends signals at certain time intervals, while the receiver is always on. This allows for both frequency division duplex operation and time division operation of the transmitter, enabling Type A equipment to achieve a "frequency division + time division" working mode.

[0062] Type B equipment employs time-division multiplexing mode, based on fast narrow-beam switching technology using phased array antennas, and hybrid TDMA multiple access technology. The transmission layer features a short frame length to ensure service transmission delay while maintaining channel utilization efficiency. The frame format design considers transmission guard intervals and beam switching guard intervals for different transmission distances to achieve AB and BC communication, such as... Figure 3 As shown.

[0063] The scattering communication system implemented by the dual-mode antenna of parabolic antenna and phased array antenna used in this invention effectively solves the problem of point-to-multipoint scattering communication mode under the condition of compatibility with existing parabolic scattering communication equipment, and can be widely used in engineering practice.

[0064] Those skilled in the art can understand this embodiment as a more specific description of Embodiment 1.

[0065] Those skilled in the art know that, in addition to implementing the system provided by the present application and each device, module and unit thereof in the form of pure computer readable program code, the system provided by the present application and each device, module and unit thereof can also be implemented in the form of logic gates, switches, application specific integrated circuits, programmable logic controllers and embedded microcontrollers, etc. by logically programming the method steps to achieve the same functions. Therefore, the system provided by the present application and each device, module and unit thereof can be considered as a hardware component, and the devices, modules and units included therein for achieving various functions can also be considered as structures within the hardware component; the devices, modules and units for achieving various functions can also be considered as both software modules implementing methods and structures within hardware components.

[0066] The specific embodiments of the present application are described above. It needs to be understood that the present application is not limited to the specific embodiments described above, and various changes or modifications can be made by those skilled in the art within the scope of the claims, which does not affect the essential content of the present application. The embodiments of the present application and the features in the embodiments can be combined with each other in any manner without conflict.

Claims

1. A dual-body based antenna scattering communication system, characterized in that, The dual-body system includes A-type equipment and B-type equipment, and the dual-body system refers to using two types of antennas, the A-type equipment uses a parabolic antenna, and the B-type equipment uses a phased array antenna; The A-type equipment uses a dual-frequency source, the receiver and the transmitter use a dual-frequency source, and the transceiver works at different frequencies; the transmitter sends signals according to the communication waveform in time division, and the receiver is always in the working state; The B-type equipment uses a phased array antenna system, and the receiver / transmitter works at different frequencies in time division; the transmission layer is a time division multiple access mode, and the beam switching of the phased array antenna of the B-type equipment is used to realize time division multiplexing of the A-type equipment-B-type equipment and the B-type equipment-C node equipment communication link; The C node equipment uses the B-type equipment, and the C node equipment is one of the nodes of the multi-point communication; The B-type equipment uses a time division multiplexing mode, a fast narrow beam switching technology based on a phased array antenna, and a hybrid TDMA multiple access technology, and the transmission layer is designed with a frame length; the frame format design considers the transmission protection interval and the beam switching protection interval of different transmission distances, and realizes the communication between A-B and B-C.

2. The dual-body antenna based scatter communication system of claim 1, wherein, The A-type equipment includes a host, a power amplifier unit, an antenna, and a servo; the host performs data processing and baseband signal processing in the system, the power amplifier unit amplifies the signal of the transmitter with high power, and the antenna and the servo perform mechanical scanning of the antenna.

3. The dual-body antenna based scatter communication system of claim 2, wherein, The antenna and the servo of the A-type equipment include a feed network, an antenna reflector, and a servo control device; the feed network provides power supply for the antenna, the antenna reflector provides electromagnetic reflection feedback for the parabolic antenna, and the servo control device controls the rotation of the turntable to perform antenna alignment.

4. The dual-body antenna based scatter communication system of claim 1, wherein, The B-type equipment includes a host, an antenna attitude stabilization platform, and a phased array antenna; the host performs data processing and baseband signal processing in the system, the antenna attitude stabilization platform offsets the shaking caused by the external environment of the phased array antenna, and the phased array antenna is an array antenna composed of multiple antennas and changes the beam pointing direction through electrical scanning.

5. The dual-body antenna based scatter communication system of claim 4, wherein, The phased array antenna includes an antenna array, a radio frequency front end, and a power division and combination network; the antenna array forms the phased array antenna, the radio frequency front end performs receiving and amplifying of the radio frequency signal, and the power division and combination network connects the phased array multi-element and the single feed source.

6. The dual-body antenna based scatter communication system of claim 1, wherein, The host of the A-type equipment and the B-type equipment includes a panel unit, a main control unit, a baseband unit, and a channel unit; the panel unit provides some unit operation interfaces, the main control unit provides control interfaces and instructions for various switches of the system, the baseband unit performs baseband signal processing, and the channel unit performs up-conversion and down-conversion of the radio signal and signal amplification.

7. A method for scatter communication based on a two-body antenna, characterized in that, The method applies the dual-body antenna scattering communication system based on the dual-body antenna scattering communication system of any one of claims 1-6, and the method includes the following steps: Step S1: After the A-type equipment and the B-type equipment are aligned through the automatic alignment technology, the A-type equipment antenna is stationary, and the B-type equipment is aligned with the C node equipment through the phased array beam fast switching; Step S2: the transmitting frequency of the A-type device is F1 and the receiving frequency is F2; the A-type device transmits a signal at T1 using the F1 frequency, and receives a signal at T2 using the F2 frequency; the B-type device node corresponds to the A-type device, receives the signal transmitted by the A-type device at T1 using the F1 frequency, and transmits a signal at T2 using the F2 frequency; Step S3: the B-type device transmits at T3 using the F2 frequency, the C node device receives the signal transmitted by the B-type device at T3 using the F2 frequency, the C node device transmits a signal at T4 using the F1 frequency, and the B-type device receives the signal transmitted by the C node device at T4 using the F1 frequency; Step S4: after steps S2 and S3, the B-type device can simultaneously realize communication with the A-type device and the C node device, thereby realizing point-to-multipoint communication.

Images