A frequency planning and frequency selection method based on a HAPS communication high-altitude platform

By performing frequency planning and selection on the HAPS communication launch platform, and combining flight trajectory and electromagnetic characteristics for interference analysis, frequency allocation was optimized, thus solving the frequency interference problem of communication payloads on the HAPS platform and improving system compatibility and spectrum utilization.

CN121000324BActive Publication Date: 2026-01-06CHINA ELECTRONICS TECH GRP NO 7 RES INST
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Patent Information

Application Number
CN202511508312.8
Authority / Receiving Office
CN · China
Patent Type
Patents(China)
Current Assignee / Owner
Filing Date
2025-10-22
Publication Date
2026-01-06
Estimated Expiration
2045-10-22

AI Technical Summary

Technical Problem

The HAPS communication launch platform suffers from frequency interference issues with communication payloads, and traditional frequency planning methods have failed to effectively address electromagnetic interference between devices and the problem of limited space.

Method used

The frequency planning and selection method based on the HAPS communication launch platform obtains flight trajectory planning parameters and electromagnetic characteristics of the communication payload, performs interference analysis, determines the frequency planning results of broadband and dedicated information exchange links, and optimizes frequency allocation to reduce interference.

Benefits of technology

It improves the rationality of frequency allocation and system stability, enhances spectrum utilization, and solves the frequency interference problem on the HAPS platform.

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Abstract

The application relates to a frequency planning and frequency selection method based on a HAPS communication high-altitude platform. The method comprises the following steps: acquiring flight trajectory planning parameters of the HAPS communication high-altitude platform according to task information, and determining electromagnetic characteristics of a plurality of target communication payloads for task execution from a plurality of communication payloads; determining a wideband information transmission link frequency planning result based on the electromagnetic characteristics and the flight trajectory planning parameters and in combination with a first preset wideband frequency selection interval; performing interference analysis on a special information exchange link of the HAPS communication high-altitude platform in combination with the wideband information transmission link frequency planning result, determining a special information exchange link frequency planning result in combination with a second preset special frequency selection interval, and distributing the special information exchange link frequency planning result to the HAPS communication high-altitude platform and the corresponding target communication payload. Compared with the prior art, the application can improve the rationality of frequency assignment and the stability of the system, improve the spectrum utilization rate, and solve the frequency interference problem on the HAPS platform.
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Description

Technical Field

[0001] This application relates to the field of wireless communication technology for high-altitude platforms, and in particular to a frequency planning and selection method for HAPS communication-based ascending platforms. Background Technology

[0002] HAPS (High Altitude Platform Station) communication refers to communication using a quasi-stationary platform at an altitude of 17-22 km above sea level. The atmospheric environment in this altitude range is characterized by thin air, low air pressure, low average temperature, drastic diurnal temperature variations, high ozone content, and strong solar radiation, which can significantly impact the normal operation of the communication payload and the communication performance of the elevated platform.

[0003] Secondly, HAPS communication launch platforms typically carry multiple communication payloads, necessitating consideration of frequency interference coordination in an integrated air-ground environment—a situation traditional frequency planning and selection methods fail to address. Furthermore, HAPS platforms carry a wide variety of equipment, including energy devices (such as solar panels and energy converters), propulsion equipment (such as propulsion motors), and avionics, covering the VHF to Ka bands. Particularly noteworthy is the prevalence of devices using the sub-2GHz band, with overlapping frequencies, making electromagnetic interference a significant concern. On one hand, devices like solar converters and avionics operate in the same frequency band as some communication payloads, causing co-channel interference through antenna coupling. On the other hand, signals emitted by the communication payloads also interfere with avionics on the HAPS platform, such as telemetry, tracking, and control (TT&C) and propulsion system control circuits.

[0004] Furthermore, the HAPS communication launch platform has limited space for co-located electronic equipment, numerous antennas, and a complex electromagnetic environment. On the one hand, the payload bay on the HAPS communication launch platform has limited space, requiring the installation of a large number of wireless communication devices. Due to limited carrying capacity, the devices cannot obtain sufficient shielding protection, and the isolation between devices is limited. On the other hand, the surrounding functional bays can also interfere with the equipment in the payload bay.

[0005] Therefore, the frequency interference problem of integrated communication payloads on the HAPS communication launch platform is very prominent. Summary of the Invention

[0006] Therefore, it is necessary to provide a frequency planning and selection method, apparatus, computer equipment, and storage medium based on the HAPS communication launch platform that can overcome frequency interference of communication payloads on HAPS, in order to address at least one of the above-mentioned technical problems.

[0007] To solve the above-mentioned technical problems, the technical solution of the present invention is as follows:

[0008] Firstly, a frequency planning and selection method based on a HAPS communication launch platform is provided for a HAPS communication launch platform carrying multiple communication payloads, including:

[0009] Based on the mission information, the flight trajectory planning parameters of the HAPS communication launch platform are obtained, and the electromagnetic characteristics of multiple target communication payloads used for mission execution are determined from the various communication payloads.

[0010] The HAPS communication launch platform includes a broadband information transmission link for transmitting broadband information and a dedicated information exchange link for transmitting dedicated information.

[0011] Based on the electromagnetic characteristics of the multiple target communication payloads and the flight trajectory planning parameters, interference analysis is performed on the broadband information transmission link of the target communication payloads, and the broadband information transmission link frequency planning result is determined in combination with the first preset broadband frequency selection interval; wherein, the first preset broadband frequency selection interval is used to indicate the assignable frequency interval of the broadband information transmission link, and the broadband information transmission link frequency planning result is used to assign available broadband information transmission link frequencies to the multiple target communication payloads.

[0012] Based on the broadband information transmission link frequency planning results, interference analysis is performed on the dedicated information exchange link of the HAPS communication launch platform. The dedicated information exchange link frequency planning results are determined by combining the second preset dedicated frequency selection interval and distributed to the HAPS communication launch platform and the corresponding target communication payload. The second preset dedicated frequency selection interval is used to indicate the assignable frequency interval of the dedicated information exchange link, and the dedicated information exchange link frequency planning results are used to assign available dedicated information exchange link frequencies to the HAPS communication launch platform.

[0013] Secondly, an electronic device includes:

[0014] Memory is used to store executable instructions or computer programs.

[0015] A processor, when executing computer-executable instructions or computer programs stored in the memory, implements the method described in the first aspect.

[0016] Thirdly, a computer-readable storage medium storing at least one instruction, at least one program, code set, or instruction set, wherein the at least one instruction, at least one program, code set, or instruction set is loaded and executed by a processor to implement the method as described in the first aspect.

[0017] Fourthly, a computer program product includes a computer program or computer-executable instructions, which, when executed by a processor, implement the method described in the first aspect.

[0018] Compared with the prior art, the beneficial effects of the technical solution of the present invention are:

[0019] This application proposes a frequency planning and selection method based on the HAPS communication launch platform. Based on the target communication payload determined by mission information, interference is accurately assessed based on its electromagnetic characteristics and flight trajectory planning parameters, thus providing a basis for frequency planning and selection. This determines the frequency planning result suitable for the broadband information transmission link. Furthermore, interference analysis is performed on the dedicated information exchange link to determine the frequency planning result suitable for it, fully considering the constraints of the communication payload. Compared with existing technologies, this application can improve the rationality of frequency allocation and system stability, while also increasing spectrum utilization, improving system compatibility, and solving the frequency interference problem on the HAPS platform. Attached Figure Description

[0020] Figure 1 This is a flowchart illustrating the frequency planning and selection method based on the HAPS communication launch platform in some embodiments of this application.

[0021] Figure 2 This is another flowchart illustrating the frequency planning and selection method based on the HAPS communication launch platform in some embodiments of this application. Detailed Implementation

[0022] The terms "first," "second," etc., used in the specification, claims, and accompanying drawings of this application are used to distinguish similar objects and are not necessarily used to describe a specific order or sequence. It should be understood that such terms are interchangeable where appropriate; this is merely a way of distinguishing objects with the same attributes in the description of embodiments of this application. Furthermore, the terms "comprising" and "having," and any variations thereof, are intended to cover non-exclusive inclusion, so that a process, method, system, product, or apparatus that comprises a series of units is not necessarily limited to those units, but may include other units not explicitly listed or inherent to those processes, methods, products, or apparatuses. The term "determine" broadly covers a wide variety of actions, including acquiring, calculating, processing, deriving, investigating, searching (e.g., searching in a table, database, or other data structure), probing, and similar actions; it may also include receiving (e.g., receiving information), accessing (e.g., accessing data in memory), and similar actions; it may also include generating, creating, establishing, and similar actions; and parsing, selecting, choosing, and similar actions, etc. Definitions of other terms will be given in the following description.

[0023] It should be noted that when one element is considered to be "connected" to another element, it can be directly connected to the other element or connected to the other element through an intermediary element. Furthermore, in the following embodiments, "connection" should be understood as "electrical connection," "communication connection," etc., if there is transmission of electrical signals or data between the connected objects.

[0024] It should be emphasized that the acquisition, transmission, storage, use, and processing of data in the technical solutions of this application all comply with the relevant provisions of national laws and regulations.

[0025] In the embodiments of this application, certain software, components, models and other existing solutions in the industry may be mentioned. These should be regarded as exemplary and are only intended to illustrate the feasibility of implementing the technical solution of this application. However, they do not mean that the applicant has used or necessarily used the solution.

[0026] The accompanying drawings are for illustrative purposes only and should not be construed as limiting the scope of this patent.

[0027] To better illustrate this embodiment, some parts in the accompanying drawings may be omitted, enlarged, or reduced, and do not represent the actual product dimensions.

[0028] It will be understood by those skilled in the art that certain well-known structures and their descriptions may be omitted in the accompanying drawings.

[0029] The technical solution of the present invention will be further described below with reference to the accompanying drawings and embodiments.

[0030] In some embodiments of this application, a frequency planning and selection method based on a HAPS communication launch platform is provided for a HAPS communication launch platform carrying multiple communication payloads, as shown in Figure 1, including:

[0031] Based on the mission information, the flight trajectory planning parameters of the HAPS communication launch platform are obtained, and the electromagnetic characteristics of multiple target communication payloads used for mission execution are determined from the various communication payloads.

[0032] The HAPS communication launch platform includes a broadband information transmission link for transmitting broadband information and a dedicated information exchange link for transmitting dedicated information.

[0033] Based on the electromagnetic characteristics of the multiple target communication payloads and the flight trajectory planning parameters, interference analysis is performed on the broadband information transmission link of the target communication payloads, and the broadband information transmission link frequency planning result is determined in combination with the first preset broadband frequency selection interval; wherein, the first preset broadband frequency selection interval is used to indicate the assignable frequency interval of the broadband information transmission link, and the broadband information transmission link frequency planning result is used to assign available broadband information transmission link frequencies to the multiple target communication payloads.

[0034] Based on the broadband information transmission link frequency planning results, interference analysis is performed on the dedicated information exchange link of the HAPS communication launch platform. The dedicated information exchange link frequency planning results are determined by combining the second preset dedicated frequency selection interval and distributed to the HAPS communication launch platform and the corresponding target communication payload. The second preset dedicated frequency selection interval is used to indicate the assignable frequency interval of the dedicated information exchange link, and the dedicated information exchange link frequency planning results are used to assign available dedicated information exchange link frequencies to the HAPS communication launch platform.

[0035] The above embodiments fully consider the constraints of communication payloads, improve system compatibility, enhance the rationality of frequency allocation and system stability, and improve spectrum utilization.

[0036] It should be noted that the above embodiments avoid frequency combinations that may cause interference during the frequency assignment stage, thereby eliminating / reducing interference at the source, unlike traditional methods that suppress interference through specific filters after it occurs. This approach reduces costs while maximizing the utilization of the payload space of the HAPS communication launch platform.

[0037] It should be understood that this application does not exclude the technical solution of using filters for filtering and suppression while performing frequency planning using the method described in the above embodiments on the HAPS communication launch platform.

[0038] As a non-limiting example, the flight trajectory planning parameters include, but are not limited to, information parameters such as longitude, latitude, altitude, heading angle, roll angle, and altitude of the HAPS communication launch platform.

[0039] In some specific implementations, the HAPS communication launch platform operates in the stratosphere.

[0040] Those skilled in the art will understand that when determining the electromagnetic characteristics of multiple target communication payloads for task execution from the various communication payloads described, the type and quantity of communication payloads are determined simultaneously.

[0041] In some specific implementation processes, the first preset broadband frequency selection interval is the VHF band and the UHF band, that is, the broadband information transmission link works in the VHF band and the UHF band at this time; the second preset dedicated frequency selection interval is the UHF band, that is, the dedicated information exchange link works in the UHF band at this time.

[0042] In some preferred embodiments, the first preset broadband frequency selection range includes a first preset receiving frequency band and a first preset transmitting frequency band;

[0043] The interference analysis of the broadband information transmission link of the target communication payload includes:

[0044] The broadband information transmission link is subjected to first type harmonic and transmit spurious analysis, first type broadband noise analysis, first type third-order reverse intermodulation analysis, first type third-order receive intermodulation analysis and first type out-of-band blocking analysis to determine the first interference analysis results.

[0045] Based on the first interference analysis results, filter out the corresponding broadband information transmission link frequencies within the first preset receiving frequency band and / or the first preset transmitting frequency band.

[0046] The remaining available broadband information transmission link frequencies within the first preset receiving frequency band and the first preset transmitting frequency band are assigned to the target communication payload to generate the broadband information transmission link frequency planning result.

[0047] Those skilled in the art should understand that a complete communication link (i.e., a broadband information transmission link and a dedicated information exchange link) should include at least one of a transmission frequency and a reception frequency. As a non-limiting example, a broadband information transmission link consists of a specific broadband information transmission link frequency (or band) for transmission and a specific broadband information transmission link frequency (or band) for reception.

[0048] It should be noted that HAPS communication launch platforms are typically equipped with multiple broadband information transmission links according to usage requirements (mission requirements). Therefore, co-location interference between the HAPS communication launch platform and its various onboard communication payloads needs to be considered. Through experiments, the inventors discovered the main co-location interference relationships as follows:

[0049] 1) Broadband information transmission links to broadband information transmission links and dedicated information exchange links: transmitter harmonic / sideband / spurious interference, broadband noise interference, reverse intermodulation interference, receiver intermodulation interference, and out-of-band blocking interference;

[0050] 2) Transmitter harmonic / sideband / spurious interference, broadband noise interference, and out-of-band blocking interference from dedicated information exchange links to broadband information transmission links.

[0051] In the above embodiments, since the interference situation of dedicated information exchange links is relatively simpler than that of broadband information transmission links, frequency planning and selection are prioritized for broadband information transmission links during implementation. By comprehensively considering various interference factors, a complete frequency interference analysis model for the HAPS communication launch platform was established, which can accurately assess the interference situation in the system and provide a reliable basis for frequency planning and selection. After filtering and suppression, the broadband information transmission links are effectively suppressed by in-band interference between broadband information transmission links, transmitter harmonics / sidebands / spurious emissions, and other interferences, thus meeting electromagnetic compatibility requirements.

[0052] In some alternative embodiments, the first type of harmonic and emitted spurious analysis includes:

[0053] Calculate the high-order harmonic interference and spurious interference results received by the receiver of each broadband information transmission link transmitter.

[0054] The results of the second harmonic interference from the transmitter of the dedicated information exchange link to the transmit spurious interference of the broadband information transmission link receiver are calculated.

[0055] In some specific implementation processes, the higher harmonic interference results include second, third, fourth, and fifth harmonic interference results, that is, it is necessary to analyze and calculate the second, third, fourth, and fifth harmonic interference received by the receiving frequency of the broadband information transmission link receiver at each broadband information transmission link transmitter.

[0056] Furthermore, for the VHF band transmission frequency selected for broadband information transmission links, its second, third, fourth, and fifth harmonic interferences are calculated, thereby removing the corresponding frequencies within the receiving band when subsequently assigning receiving frequencies to the VHF band.

[0057] It should be understood that this application does not exclude the calculation of higher harmonic interference, which should be determined by those skilled in the art based on the actual situation.

[0058] In some alternative embodiments, the first type of broadband noise analysis includes:

[0059] Calculate the broadband noise interference results coupled from the transmitter of each broadband information transmission link to the receiver of another broadband information transmission link;

[0060] Calculate the broadband noise interference results coupled from the transmitter of the dedicated information exchange link to the receiver of the broadband information transmission link.

[0061] In some alternative embodiments, the first type of third-order inverse intermodulation analysis includes:

[0062] Calculate the third-order inverse intermodulation result received by the receiver of each broadband information transmission link under the worst-case scenario of inverse intermodulation between the transmitting antennas of each broadband information transmission link.

[0063] In some alternative embodiments, the first type of third-order receive intermodulation analysis includes:

[0064] Calculate the third-order receive intermodulation result generated after any two broadband information transmission link transmit antennas are coupled to the broadband information transmission link receive antenna;

[0065] Calculate the third-order receive intermodulation results generated at the transmitters of the dedicated information exchange link and the broadband information transmission link.

[0066] In some alternative embodiments, the first type of out-of-band blocking analysis includes:

[0067] Determine whether the out-of-band blocking signal strength received by the transmitter of the broadband information transmission link at each broadband information transmission link receiver exceeds the dynamic range threshold of the broadband information transmission link receiver.

[0068] Calculate the out-of-band blocking interference results received by the receiver of the broadband information transmission link from the transmitter of the dedicated information exchange link.

[0069] In some preferred embodiments, the second preset dedicated frequency selection interval includes a second receiving frequency band and a second preset transmitting frequency band;

[0070] The interference analysis of the dedicated information exchange link of the HAPS communication launch platform includes:

[0071] The dedicated information exchange link is subjected to second type harmonic and transmit spurious analysis, second type broadband noise analysis, second type third-order reverse intermodulation analysis, second type third-order receive intermodulation analysis and second type out-of-band blocking analysis to determine the second interference analysis results.

[0072] Based on the second interference analysis results, filter out the corresponding dedicated information exchange link frequencies within the second receiving frequency band and / or the second preset transmitting frequency band;

[0073] The remaining available dedicated information exchange link frequencies within the second receiving frequency band and the second preset transmitting frequency band are assigned to the HAPS communication launch platform, generating the dedicated information exchange link frequency planning result.

[0074] In some alternative embodiments, the second type of harmonic and emitted spurious analysis includes:

[0075] Calculate the high-order harmonic interference and transmission spurious interference results received by the receiver of the dedicated information exchange link from the transmitters of each broadband information transmission link.

[0076] In some alternative embodiments, the second type of broadband noise analysis includes:

[0077] Calculate the broadband noise interference results of the broadband information transmission link transmitter on the dedicated information exchange link receiving antenna.

[0078] In some alternative embodiments, the second type of third-order inverse intermodulation analysis includes:

[0079] Calculate the third-order reverse intermodulation result of any two dedicated information exchange link transmitters under the worst-case scenario of reverse intermodulation between the transmit antennas of each dedicated information exchange link.

[0080] In some alternative embodiments, the second type of third-order receive intermodulation analysis includes:

[0081] Calculate the third-order receive intermodulation result generated after any two broadband information transmission link transmit antennas are coupled to the dedicated information exchange link transmit antennas.

[0082] In some alternative embodiments, the second type of out-of-band blocking analysis includes:

[0083] Calculate the out-of-band blocking interference results received by the receiver of the dedicated information exchange link from the transmitter of the broadband information transmission link.

[0084] In some preferred embodiments, the method further includes: before performing interference analysis on the broadband information transmission links, determining the frequency selection range corresponding to each of the broadband information transmission links indicated by the first preset broadband frequency selection interval according to preset frequency band separation requirements.

[0085] As a non-limiting example, the VHF band (corresponding to the first preset wideband frequency selection range) is divided into low VHF (54-88MHz) and high VHF (174-216 MHz).

[0086] In some alternative embodiments, after performing interference analysis on the low-frequency band (i.e., the relatively low-frequency band) in the first preset broadband frequency selection interval, the remaining available broadband information transmission link frequencies in the high-frequency band are determined based on the first interference analysis results for the low-frequency band.

[0087] In some specific implementation processes, referring to Figure 2, the VHF band transmission frequency is assigned first, and after interference analysis is performed on the assigned VHF band transmission frequency, the VHF and UHF band reception frequencies are assigned based on the interference analysis results. Then, the transmission frequencies in the VHF band that may cause harmonic interference to the reception frequency are removed, and finally the UHF band transmission frequency is assigned, thereby reducing cross-band interference.

[0088] In some preferred embodiments, the method further includes: before determining the electromagnetic characteristics of the plurality of target communication payloads for task execution from the plurality of communication payloads, adjusting the antenna co-location layout scheme of each communication payload to minimize mutual coupling interference between the transceiver antennas of each communication payload.

[0089] After adaptation and antenna layout on the HAPS communication launch platform, the broadband information transmission link is mainly affected by in-band interference between broadband information transmission links, transmitter harmonics / sidebands / spurious emissions, receiver intermodulation, out-of-band blocking interference, and transmitter harmonics / sidebands / spurious emissions from the dedicated information exchange link; the dedicated information exchange link is mainly affected by transmitter harmonics / sidebands / spurious emissions from the broadband information transmission link.

[0090] In some specific implementations, the transceiver antennas of the communication payload on the HAPS communication launch platform support electric adjustment.

[0091] Some embodiments of this application also provide a computer-readable storage medium storing at least one instruction, at least one program, code set, or instruction set, wherein the at least one instruction, at least one program, code set, or instruction set is loaded and executed by a processor, causing the processor to perform some or all of the steps of the method provided in the foregoing embodiments of this application.

[0092] It is understood that the storage medium can be transient or non-transient. Exemplarily, the storage medium includes, but is not limited to, various media capable of storing program code, such as USB flash drives, portable hard drives, read-only memory (ROM), random access memory (RAM), magnetic disks, or optical disks.

[0093] By way of example, the processor may be a central processing unit (CPU), a microprocessor unit (MPU), a digital signal processor (DSP), or a field programmable gate array (FPGA), etc.

[0094] By way of example, the read-only memory includes, but is not limited to, MASK ROM, PROM, EPROM, EEPROM, Flash, etc.

[0095] By way of example, the random access memory includes, but is not limited to, DRAM, SRAM, SDRAM, DDR SDRAM, etc.

[0096] In some examples, a computer program product is provided, which can be implemented by hardware, software, or a combination thereof. As a non-limiting example, the computer program product can be embodied in the storage medium, or it can be embodied in a software product, such as an SDK (Software Development Kit).

[0097] As a non-limiting example, a computer program product is provided, comprising a computer program or computer-executable instructions stored in a computer-readable storage medium. A processor of an electronic device reads the computer program or computer-executable instructions from the computer-readable storage medium, and executes the computer-executable instructions, causing the electronic device to perform some or all of the steps of the method described in the embodiments of this application.

[0098] In some examples, a computer program is provided, including computer-readable code, wherein, when the computer-readable code is run in a computer device, a processor in the computer device performs some or all of the steps for implementing the method.

[0099] This embodiment also proposes an electronic device, including a memory and a processor. The memory stores at least one instruction, at least one program, code set, or instruction set. When the processor executes the at least one instruction, at least one program, code set, or instruction set, it implements some or all of the steps of the method described in the foregoing embodiments.

[0100] In some examples, a hardware entity of the electronic device is provided, including: a processor, a memory, and a communication interface; wherein the processor typically controls the overall operation of the electronic device; the communication interface is used to enable the electronic device to communicate with other terminals or servers via a network; the memory is configured to store instructions and applications executable by the processor, and may also cache data to be processed or already processed (including but not limited to image data, audio data, voice communication data, and video communication data) to be processed by the processor and various modules in the electronic device, and may be implemented using flash memory (FLASH), erasable programmable read-only memory (EPROM), electrically erasable programmable read-only memory (EEPROM), or random access memory (RAM).

[0101] A processor may include one or more processing elements. Therefore, a processor may include one or more integrated circuits (ICs) configured to perform the functions of the processor. Furthermore, each integrated circuit may include circuitry (e.g., a first circuit, a second circuit, and other circuitry) configured to perform the functions of the processor.

[0102] Furthermore, data can be transferred between the processor, communication interface, and memory via a bus, which can include any number of interconnected buses and bridges, connecting various circuits of one or more processors and memories together.

[0103] The same or similar labels correspond to the same or similar parts;

[0104] The terms used to describe positional relationships in the accompanying drawings are for illustrative purposes only and should not be construed as limiting this application.

[0105] It should be noted that, unless otherwise specified, the embodiments and features described in this application can be combined with each other.

[0106] In different specific implementations, the methods or systems described in this application can be implemented in software, hardware, or a combination thereof. Furthermore, the order of the method steps can be changed, and various elements can be added, reordered, combined, omitted, or modified.

[0107] Obviously, the above embodiments of this application are merely examples for clearly illustrating this application, and are not intended to limit the implementation of this application, nor are they intended to limit this application. For those skilled in the art, other variations or modifications can be made based on the above description. The separate structural / functional modules or units can be integrated together to form an independent part, or each module can exist independently, or two or more modules can be integrated to form an independent part. The structure and function of the separate components can be implemented as a combined structure or component. It is neither necessary nor possible to exhaustively describe all embodiments here. Any modifications, equivalent substitutions, and improvements made within the spirit and principles of this application should be included within the scope of protection of the claims of this application.

Claims

1. A frequency planning and selection method based on a HAPS communication high-altitude platform, for a HAPS communication high-altitude platform carrying multiple communication payloads, characterized in that, The method comprises the following steps: According to the task information, obtain the flight trajectory planning parameters of the HAPS communication high-altitude platform, and determine the electromagnetic characteristics of the target communication payload for task execution from the plurality of communication payloads; The HAPS communication high-altitude platform comprises a wideband information transmission link for transmitting wideband information and a dedicated information exchange link for transmitting dedicated information; Based on the electromagnetic characteristics of the target communication payload and the flight trajectory planning parameters, interference analysis is performed on the wideband information transmission link of the target communication payload, and a wideband information transmission link frequency planning result is determined in combination with a first preset wideband frequency selection interval, wherein the first preset wideband frequency selection interval is used to indicate the assignable frequency interval of the wideband information transmission link; In combination with the wideband information transmission link frequency planning result, interference analysis is performed on the dedicated information exchange link of the HAPS communication high-altitude platform, a dedicated information exchange link frequency planning result is determined in combination with a second preset dedicated frequency selection interval, and the result is distributed to the HAPS communication high-altitude platform and the corresponding target communication payload; wherein the second preset dedicated frequency selection interval is used to indicate the assignable frequency interval of the dedicated information exchange link.

2. The frequency planning and selection method based on HAPS communication altitude platform according to claim 1, characterized in that, The first preset wideband frequency selection interval comprises a first preset receiving frequency band and a first preset transmitting frequency band; The interference analysis on the wideband information transmission link of the target communication payload comprises: Performing first-type harmonic and transmitting spurious analysis, first-type wideband noise analysis, first-type third-order reverse intermodulation analysis, first-type third-order receiving intermodulation analysis, and first-type out-of-band blocking analysis on the wideband information transmission link to determine a first interference analysis result; Based on the first interference analysis result, the corresponding wideband information transmission link frequencies within the first preset receiving frequency band and / or the first preset transmitting frequency band are filtered out; The remaining available wideband information transmission link frequencies within the first preset receiving frequency band and the first preset transmitting frequency band are assigned to the target communication payload to generate the wideband information transmission link frequency planning result.

3. The frequency planning method based on the HAPS communication high-altitude platform according to claim 2, wherein The first-type harmonic and transmitting spurious analysis comprises: Calculating the high-order harmonic interference results and the transmitting spurious interference results of each wideband information transmission link transmitting end received by the wideband information transmission link receiving end; Calculating the transmitting spurious interference results of the second harmonic of the dedicated information exchange link transmitting end on the wideband information transmission link receiving end; The first-type wideband noise analysis comprises: Calculating the wideband noise interference results of each wideband information transmission link transmitting end coupled to another wideband information transmission link receiving end; Calculating the wideband noise interference results of the dedicated information exchange link transmitting end coupled to the wideband information transmission link receiving end; The first-type third-order reverse intermodulation analysis comprises: Calculating the third-order reverse intermodulation results received by the wideband information transmission link receiving end under the worst case of reverse intermodulation between the transmitting antennas of each wideband information transmission link; The first-type third-order receiving intermodulation analysis comprises: Calculate the third-order receive intermodulation result generated after any two wideband information transmission link transmitting antennas are coupled to the wideband information transmission link receiving antennas; Calculate the third-order receive intermodulation result generated by the dedicated information exchange link and the wideband information transmission link transmitting end; The first type of out-of-band blocking analysis includes: Determine whether the out-of-band blocking signal strength of the wideband information transmission link transmitting end received by each wideband information transmission link receiving end exceeds the dynamic range threshold of the wideband information transmission link receiving end; Calculate the out-of-band blocking interference result of the dedicated information exchange link transmitting end received by the wideband information transmission link receiving end.

4. The frequency planning and selection method based on HAPS communication altitude platform according to claim 3, characterized in that, The second preset dedicated frequency selection interval includes a second receiving frequency band and a second preset transmitting frequency band; The interference analysis of the dedicated information exchange link of the HAPS communication platform includes: Perform second harmonic and emission spurious analysis, second wideband noise analysis, second third-order reverse intermodulation analysis, second third-order receive intermodulation analysis, and second out-of-band blocking analysis on the dedicated information exchange link to determine a second interference analysis result; Based on the second interference analysis result, filter out the corresponding dedicated information exchange link frequencies in the second receiving frequency band and / or the second preset transmitting frequency band; Assign the remaining available dedicated information exchange link frequencies in the second receiving frequency band and the second preset transmitting frequency band to the HAPS communication platform to generate the dedicated information exchange link frequency planning result.

5. The frequency planning method based on the HAPS communication platform according to claim 4, wherein The second harmonic and emission spurious analysis includes: Calculate the high-order harmonic interference result and the emission spurious interference result of each wideband information transmission link transmitting end received by the dedicated information exchange link receiving end; The second wideband noise analysis includes: Calculate the wideband noise interference result of the wideband information transmission link transmitting end on the dedicated information exchange link receiving antenna; The second third-order reverse intermodulation analysis includes: Calculate the third-order reverse intermodulation result of any two dedicated information exchange link transmitting ends under the worst case of reverse intermodulation between the dedicated information exchange link transmitting antennas; The second third-order receive intermodulation analysis includes: Calculate the third-order receive intermodulation result generated after any two wideband information transmission link transmitting antennas are coupled to the dedicated information exchange link transceiving antenna; The second out-of-band blocking analysis includes: Calculate the out-of-band blocking interference result of the wideband information transmission link transmitting end received by the dedicated information exchange link receiving end.

6. The frequency planning and selection method based on the HAPS communication high-altitude platform of claim 1, characterized in that, Further includes: Before performing the interference analysis on the wideband information transmission link, determine the frequency selection range corresponding to each wideband information transmission link in the first preset wideband frequency selection interval according to the preset frequency band separation requirement.

7. The frequency planning and selection method based on HAPS communication altitude platform according to claim 6, characterized in that, After performing the interference analysis on the low frequency band in the first preset wideband frequency selection interval, determine the remaining available wideband information transmission link frequencies in the high frequency band based on the first interference analysis result related to the low frequency band.

8. The frequency planning method of the HAPS communication airborne platform based on any one of claims 1-7, characterized in that, Further includes: Before determining the electromagnetic characteristics of the plurality of target communication loads for task execution from the plurality of communication loads, mutual coupling interference phenomenon between the transceiving antennas of each communication load is reduced by adjusting the co-sited antenna layout scheme of each communication load.

9. An electronic device, comprising: The method comprises the steps of: a memory for storing computer executable instructions or computer programs; a processor for executing the computer executable instructions or computer programs stored in the memory to implement the method of any one of claims 1-8.

10. A computer program product comprising computer programs or computer executable instructions, characterized in that, The computer program or computer executable instructions are executed by the processor to implement the method of any one of claims 1-8.

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