Unmanned aerial vehicle communication link flexible deployment system based on Ka-band high-throughput satellite

Abstract

The invention relates to an unmanned aerial vehicle communication link flexible deployment system based on a Ka-band high-throughput satellite, which is used for an unmanned aerial vehicle to quickly establish a satellite flux link in a complete task period and flexibly deploy frequency bandwidth resources of the Ka-band high-throughput satellite, and comprises an unmanned aerial vehicle task planning module used for automatically selecting a planning result for an unmanned aerial vehicle airborne satellite communication station; the high-throughput satellite communication link calculation module is used for performing high-throughput satellite link calculation; the high-throughput satellite network resource management module is used for applying for required resources from a satellite operation center and formulating a network resource allocation strategy; the high-throughput satellite beam map module is used for providing accurate high-throughput satellite beam map support for each module; the high-throughput satellite network mobility management module is used for providing cross-beam automatic switching support for the mobile terminal; and the carrier wave monitoring interference checking module is used for continuously carrying out communication interference monitoring when the unmanned aerial vehicle executes the task and reporting an abnormal monitoring result to the satellite operation center in real time.

Description

Technical Field

[0001] The present invention relates to the technical field of unmanned aerial vehicle satellite communication system and Ka-band high-throughput satellite communication, and in particular to a flexible deployment system for unmanned aerial vehicle communication links based on Ka-band high-throughput satellite. Background Art

[0002] Drones have been deeply deployed in various fields and scenarios around the world due to their advantages of flexibility, unrestricted perception of the environment, and strong concealment. The communication link of drones directly affects the telemetry and remote control commands and the return of reconnaissance data, which is especially critical for the mobile deployment of long-flight drones. Most existing drones use line-of-sight communication, using the C band and UHF band. The beyond-line-of-sight communication of long-flight drones uses satellite communication, using the Ka band and Ku band. High-throughput satellites expand communication capacity through frequency reuse, multi-point beam coverage and other technologies, which is dozens or even hundreds of times that of traditional communication satellites, and the frequency band is generally Ku band or Ka band. Satellite terminals can be installed on multiple types of platforms such as drone platforms, vehicle platforms, ship platforms, and ground platforms, and communication is achieved through high-throughput satellites and signal gateways.

[0003] The use of Ka-band high-throughput satellite resources features on-demand access and multiplexing of frequency bandwidth resources. It can support the access of multiple UAV airborne communication terminals and ground satellite communication terminals and high-speed return of reconnaissance data. The compression ratio of returned images is greatly reduced, which can greatly preserve image data details.

[0004] Before existing drones fly, they must apply for frequency bandwidth resources from the Satellite Resource Control Center in advance, usually by making a phone call. Professional technicians will accept the application and pre-allocate the frequency bandwidth usage strategy. After the drone flight, they will call the Satellite Resource Control Center to notify the end of the flight in order to reclaim the resources.

[0005] When long-flight UAVs use satellite communication resources, manual operation is inefficient and has poor coordination. UAVs can apply for and replace satellite resources, or they can build their own dedicated satellite communication networks, send applications and receive resource allocation instructions through the self-built networks, which effectively alleviates the low scheduling efficiency of UAV manual satellite resource scheduling methods to a certain extent. However, when UAVs use satellite resources, a complex satellite link establishment process is required, requiring professional technical engineers to calculate link margins based on different communication satellites, calculate the geographical angular range of each satellite terminal based on different geographical locations, and complete parameter configuration based on satellite link calculation results, which places high demands on the professionalism and accuracy of operators.

[0006] After searching, the following common defects were found in the invention patent applications named "UAV satellite communication link configuration method and device", "Satellite communication scheduling method, device and storage medium for UAV" and "UAV resource rapid scheduling system and method":

[0007] (1) The existing satellite communication link and resource scheduling methods are applicable to large-beam communication satellite surface beams, but are not applicable to the resource mobilization and flexible allocation of spot beams of high-throughput satellites;

[0008] (2) The technology of flexible allocation and use of cross-beam resources of UAVs based on high-throughput satellites is not covered by existing technologies;

[0009] (3) When multiple UAVs use high-throughput satellites to perform missions, the existing technologies do not cover the establishment of satellite communication links across spot beams, frequency resource allocation methods, and optimal strategies. Summary of the invention

[0010] In order to solve at least one of the above technical problems, the present invention proposes a flexible allocation system for UAV communication links based on Ka-band high-throughput satellites, so as to realize the rapid link setting of UAVs using high-throughput satellite spot beam resources, realize the rapid establishment of satellite flux links, flexible allocation and use of frequency bandwidth resources during the initial take-off, cross-beam flight, and end of flight of the UAV, and ensure multiple communication needs of UAV telemetry and remote control, reconnaissance data return, etc.; long-flight UAVs can apply for, configure, adjust, and release high-throughput satellite resources throughout the mission cycle. The system realizes flexible setting of communication links. From the perspective of UAV mission execution, users have seamless perception of the allocation of high-throughput satellite communication links, and the system provides smooth use quality assurance for the frequency bandwidth use of UAVs.

[0011] To achieve the above object, the present invention adopts the following technical solution:

[0012] The purpose of the present invention is to provide a flexible deployment system for UAV communication links based on Ka-band high-throughput satellites, which is used for the UAV to quickly establish satellite flux links and flexibly apply for, configure, adjust, use and release frequency bandwidth resources of Ka-band high-throughput satellites during the entire mission cycle of initial takeoff, cross-beam flight and end of flight, including:

[0013] UAV mission planning module; high-throughput satellite communication link calculation module; high-throughput satellite network resource management module; high-throughput satellite beam map module; high-throughput satellite network mobility management module and carrier monitoring interference troubleshooting module; wherein the UAV mission planning module is bidirectionally connected to the high-throughput satellite communication link calculation module; the high-throughput satellite communication link calculation module is bidirectionally connected to the high-throughput satellite network resource management module; the high-throughput satellite network resource management module is bidirectionally connected to the high-throughput satellite network mobility management module; the high-throughput satellite network resource management module is unidirectionally connected to the carrier monitoring interference troubleshooting module; the high-throughput satellite beam map module is unidirectionally connected to the high-throughput satellite network mobility management module and the high-throughput satellite communication link calculation module;

[0014] The UAV communication link flexible deployment system is configured in the satellite operation center. The UAV airborne satellite communication station, the UAV ground control station, and the gateway station communicate via satellite links through the satellite operation center. The gateway stations and the gateway station and the satellite operation center are interconnected via ground dedicated lines.

[0015] The UAV mission planning module is used to automatically select a planning result for the UAV airborne satellite communication station, wherein the planning result includes one or more of a mission satellite suitable for flight, a mission beam, an available bandwidth, a predetermined specific flight area, a flight route and a flight time;

[0016] The high-throughput satellite communication link calculation module is used to perform high-throughput satellite link calculation according to the planning result of the UAV mission planning module, calculate the communication margin, provide the UAV airborne satellite communication station and the UAV ground control station with UAV forward link calculation, return link calculation, ground control station forward link calculation and ground control station return link calculation, and obtain link calculation results;

[0017] The high-throughput satellite network resource management module is used to apply for required resources from the satellite operation center and formulate a network resource allocation strategy to ensure that each terminal uses high-throughput satellite resources and meets the mission rate requirements;

[0018] The high-throughput satellite beam map module is used to provide accurate high-throughput satellite beam map support to each module;

[0019] The high-throughput satellite network mobility management module is used to provide cross-beam automatic switching support for mobile terminals;

[0020] The carrier monitoring interference troubleshooting module is used to continuously monitor communication interference during the UAV mission and report abnormal monitoring results to the satellite operation center in real time.

[0021] Preferably, the workflow of the UAV mission planning module includes:

[0022] Receive the drone mission and set the mission number and mission name;

[0023] Reading mission parameters, including mission time, mission area, flight route, number of drone sorties, and single-drone return rate requirements;

[0024] Based on one or more of the mission parameters, preselect available high-throughput satellite resources according to actual conditions;

[0025] Retrieving the high-throughput satellite beam map module and pre-selecting a mission beam, wherein the pre-selected mission beam includes determining parameters of a reserved mission high-throughput satellite, parameters of a mission beam, and parameters of a mission gateway;

[0026] Querying available frequency bandwidth resources of the mission beam;

[0027] During the mission cycle, the drone mission is updated in real time based on the available frequency bandwidth resources.

[0028] Preferably, the workflow of the high-throughput satellite communication link calculation module includes:

[0029] Write in the parameters required for high-throughput satellite communication link calculation, including: parameters of the reserved mission high-throughput satellite, parameters of the mission beam number, parameters of the mission gateway, initial equipment parameters of the UAV airborne communication terminal and the ground communication terminal, forward link pre-configuration parameters, and on-board interference parameter configuration;

[0030] Calculating required parameters based on the high-throughput satellite communication link to perform link budgeting;

[0031] Write in the parameters of the communication system used by the drone, including spectrum efficiency and modulation and demodulation methods;

[0032] Performing high-throughput satellite communication link calculation according to the parameters required for high-throughput satellite communication link calculation, the number of UAV sorties, and the mission area; the high-throughput satellite communication link calculation includes UAV forward link calculation, return link calculation, ground forward link calculation, and return link calculation;

[0033] Calculate the communication margin and determine whether the communication margin meets the communication rate requirement for the UAV telemetry, remote control and / or reconnaissance data return;

[0034] If the requirements are met, sending a resource application instruction to the high-throughput satellite network resource management module for approval by the high-throughput satellite network resource management module;

[0035] If the requirements are not met, return to the UAV mission planning module, reconfigure and adjust the mission parameters, and re-plan the mission and the communication link budget.

[0036] Preferably, the parameters of the reserved mission high-throughput satellite include satellite name and orbital position;

[0037] The parameters of the mission beam number include bandwidth, uplink frequency, downlink frequency, uplink polarization and downlink polarization;

[0038] The parameters of the mission gateway station include location, antenna aperture, power amplifier output power, power amplifier back-off, pointing loss, feeder loss, satellite to master station EIRP and G / T;

[0039] The initial equipment parameters of the UAV airborne communication terminal and the ground communication terminal include: position, antenna aperture, power amplifier output power, power amplifier back-off, pointing loss, feeder loss, satellite to master station EIRP and G / T;

[0040] The forward link pre-configuration parameters include: available bandwidth, link margin, weather model and baseband parameters;

[0041] The on-board interference parameter configuration includes: neighboring satellite interference, cross-polarization interference and repeater intermodulation interference.

[0042] Preferably, the workflow of the high-throughput satellite network resource management module includes:

[0043] receiving a communication link calculation result of the high-throughput satellite communication link calculation module, and submitting a high-throughput satellite communication resource application to a satellite operation center based on the calculation result;

[0044] Formulate a network resource allocation strategy based on the result of the application for high-throughput satellite communication resources, where the application is approved, and the network resources include a forward frequency band, a return frequency band, and an isolation frequency band;

[0045] Calculating the matching degree between the network allocation resources corresponding to the network resource allocation strategy and the budget of all satellite communication links;

[0046] If the comparison between the calculation result of the matching degree and the threshold value confirms that the two match, the network resource allocation strategy is executed; if the comparison between the calculation result of the matching degree and the threshold value confirms that the two do not match, the network resource allocation strategy is returned to be re-formulated and the matching degree is calculated based on the re-specified network resource allocation strategy;

[0047] The executing of the network resource allocation strategy includes: configuring parameters for each terminal according to the network resource allocation strategy, and establishing a high-throughput satellite communication link.

[0048] Preferably, the network resource allocation strategy includes: manually setting the network resource allocation priority for a situation where multiple drones are performing tasks.

[0049] Preferably, the high-throughput satellite beam map module is used to provide information support for UAV mission planning and UAV beam switching, and automatically compare and update the data set with the latest version of the satellite operation center.

[0050] Preferably, the workflow of the high-throughput satellite network mobility management module includes:

[0051] During the flight of the UAV, when the UAV flies to the edge of the high-throughput satellite spot beam, the high-throughput satellite network mobility management module receives the UAV cross-beam switching request;

[0052] Calling the UAV beam switching analysis tool to analyze the beam switching parameters; the beam switching parameters include: the current geographic location of the UAV, the beam coverage range, and the beam edge gain;

[0053] Based on the analysis results, it is determined whether to perform beam switching.

[0054] Preferably, the beam switching is performed by performing the following operations:

[0055] Calling the satellite beam map module, confirming the switched target beam and the gateway to which the switched target beam and the mission beam belong, if the mission beam and the switched target beam are managed by the same gateway, there is no need to switch the gateway, if the mission beam and the switched target beam belong to different gateways, the high-throughput satellite network mobility management module performs gateway switching;

[0056] The high-throughput satellite network mobility management module sends a beam switching application instruction to the high-throughput satellite network resource management module and calls the high-throughput satellite network resource management module to lock the target beam and target gateway, establish a new satellite communication link and automatically release the original communication link resources.

[0057] The second aspect of the present invention is to provide an electronic device, which is used in conjunction with the system of the first aspect, wherein the UAV mission planning module; the high-throughput satellite communication link calculation module; the high-throughput satellite network resource management module; the high-throughput satellite beam map module; the high-throughput satellite network mobility management module and the carrier monitoring interference troubleshooting module are run on the electronic device in the form of computer program software to execute a method for flexible deployment of UAV communication links based on Ka-band high-throughput satellites.

[0058] Beneficial effects of the present invention:

[0059] (1) A flexible deployment system for UAV communication links based on Ka-band high-throughput satellites, providing flexible deployment support for high-throughput satellite links for at least one UAV and its ground control station. The system is designed for UAV communication missions based on Ka-band high-throughput satellites and can automatically analyze satellite resources, flexibly configure satellite communication links, automatically analyze and operate links throughout the mission cycle, and ensure available resources for high-priority users.

[0060] (2) The high-throughput satellite communication link calculation module can achieve the technical effect of automatically analyzing satellite resources and flexibly configuring satellite communication links by using long-flight UAV flexible communication link configuration technology, UAV mission intelligent pre-planning technology and link optimal budget technology.

[0061] (3) The high-throughput satellite network resource management module achieves the technical effect of link automation analysis and operation throughout the mission cycle through the use of automated network management technology;

[0062] (4) The high-throughput satellite network mobility management module achieves the technical effect of providing flexible deployment support for high-throughput satellite links for a UAV and its ground control station by applying the mobile terminal's cross-beam automatic switching technology. BRIEF DESCRIPTION OF THE DRAWINGS

[0063] Figure 1 A schematic diagram of the overall structural principle of a flexible deployment system for UAV communication links based on Ka-band high-throughput satellites according to a preferred embodiment of the present invention;

[0064] Figure 2 A schematic diagram of the workflow and functions of a UAV mission planning module according to a preferred embodiment of the present invention;

[0065] Figure 3 A schematic diagram of the working process and functions of a high-throughput satellite communication link computing module according to a preferred embodiment of the present invention;

[0066] Figure 4 A schematic diagram of the workflow and functions of a high-throughput satellite network resource management module according to a preferred embodiment of the present invention;

[0067] Figure 5 A schematic diagram of the workflow and functions of a high-throughput satellite network mobility management module according to a preferred embodiment of the present invention;

[0068] Figure 6 A schematic diagram of the principle structure deployment according to the first preferred embodiment of the present invention;

[0069] Figure 7 It is a schematic diagram showing the principle structure of the second preferred embodiment of the present invention. DETAILED DESCRIPTION

[0070] In order to enable those skilled in the art to better understand the technical solutions in the present invention, the technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention. It is obvious that the described embodiments are only part of the embodiments of the present invention, rather than all the embodiments of the present invention.

[0071] This embodiment provides a flexible deployment system for UAV communication links based on Ka-band high-throughput satellites, which is used for the UAV to quickly establish satellite flux links and flexibly apply for, configure, adjust, use and release frequency bandwidth resources of Ka-band high-throughput satellites during the entire mission cycle of initial takeoff, cross-beam flight and end of flight, including:

[0072] UAV mission planning module; high-throughput satellite communication link calculation module; high-throughput satellite network resource management module; high-throughput satellite beam map module; high-throughput satellite network mobility management module and carrier monitoring interference troubleshooting module; the relationship between each module is shown in Figure 1 ; Wherein, the UAV mission planning module is bidirectionally connected to the high-throughput satellite communication link calculation module; the high-throughput satellite communication link calculation module is bidirectionally connected to the high-throughput satellite network resource management module; the high-throughput satellite network resource management module is bidirectionally connected to the high-throughput satellite network mobility management module; the high-throughput satellite network resource management module is unidirectionally connected to the carrier monitoring interference troubleshooting module; the high-throughput satellite beam map module is unidirectionally connected to the high-throughput satellite network mobility management module and the high-throughput satellite communication link calculation module;

[0073] The UAV communication link flexible deployment system is configured in the satellite operation center. The UAV airborne satellite communication station, the UAV ground control station, and the gateway station communicate via satellite links through the satellite operation center. The gateway stations and the gateway station and the satellite operation center are interconnected via ground dedicated lines.

[0074] The UAV mission planning module is used to automatically select a planning result for the UAV airborne satellite communication station, wherein the planning result includes one or more of a mission satellite suitable for flight, a mission beam, an available bandwidth, a predetermined specific flight area, a flight route and a flight time;

[0075] The high-throughput satellite communication link calculation module is used to perform high-throughput satellite link calculation according to the planning result of the UAV mission planning module, calculate the communication margin, provide the UAV airborne satellite communication station and the UAV ground control station with UAV forward link calculation, return link calculation, ground control station forward link calculation and ground control station return link calculation, and obtain link calculation results;

[0076] The high-throughput satellite network resource management module is used to apply for required resources from the satellite operation center and formulate a network resource allocation strategy to ensure that each terminal uses high-throughput satellite resources and meets the mission rate requirements;

[0077] The high-throughput satellite beam map module is used to provide accurate high-throughput satellite beam map support to each module, and automatically compare and update the data set with the latest version of the satellite operation center;

[0078] The high-throughput satellite network mobility management module is used to provide cross-beam automatic switching support for mobile terminals;

[0079] The carrier monitoring interference troubleshooting module is used to continuously monitor communication interference during the flight of the UAV and report the monitoring results to the satellite operation center.

[0080] like Figure 2 As shown, as a preferred embodiment, the workflow of the UAV mission planning module includes:

[0081] Receive the drone mission and set the mission number and mission name;

[0082] Reading mission parameters, including mission time, mission area, flight route, number of drone sorties, and single-drone return rate requirements;

[0083] Based on one or more of the mission parameters, preselect available high-throughput satellite resources according to actual conditions;

[0084] Retrieving the high-throughput satellite beam map module and pre-selecting a mission beam, wherein the pre-selected mission beam includes determining parameters of a reserved mission high-throughput satellite, parameters of a mission beam, and parameters of a mission gateway;

[0085] Querying available frequency bandwidth resources of the mission beam;

[0086] During the mission cycle, the drone mission is updated in real time based on the available frequency bandwidth resources.

[0087] See also Figure 3 As a preferred implementation, the workflow of the high-throughput satellite communication link calculation module includes:

[0088] Write in the parameters required for high-throughput satellite communication link calculation, including: parameters of the reserved mission high-throughput satellite, parameters of the mission beam number, parameters of the mission gateway, initial equipment parameters of the UAV airborne communication terminal and the ground communication terminal, forward link pre-configuration parameters, and on-board interference parameter configuration;

[0089] Calculating required parameters based on the high-throughput satellite communication link to perform link budgeting;

[0090] Write in the parameters of the communication system used by the drone, including spectrum efficiency and modulation and demodulation methods;

[0091] Performing high-throughput satellite communication link calculation according to the parameters required for high-throughput satellite communication link calculation, the number of UAV sorties, and the mission area; the high-throughput satellite communication link calculation includes UAV forward link calculation, return link calculation, ground forward link calculation, and return link calculation;

[0092] Calculate the communication margin and determine whether the communication margin meets the communication rate requirement for the UAV telemetry, remote control and / or reconnaissance data return;

[0093] If the requirements are met, sending a resource application instruction to the high-throughput satellite network resource management module for approval by the high-throughput satellite network resource management module;

[0094] If the requirements are not met, return to the UAV mission planning module, reconfigure and adjust the mission parameters, and re-plan the mission and the communication link budget.

[0095] As a preferred implementation manner, the parameters of the reserved mission high-throughput satellite include satellite name and orbital position;

[0096] The parameters of the mission beam number include bandwidth, uplink frequency, downlink frequency, uplink polarization and downlink polarization;

[0097] The parameters of the mission gateway station include location, antenna aperture, power amplifier output power, power amplifier back-off, pointing loss, feeder loss, satellite to master station EIRP and G / T;

[0098] The initial equipment parameters of the UAV airborne communication terminal and the ground communication terminal include: position, antenna aperture, power amplifier output power, power amplifier back-off, pointing loss, feeder loss, satellite to master station EIRP and G / T;

[0099] The forward link pre-configuration parameters include: available bandwidth, link margin, weather model and baseband parameters;

[0100] The on-board interference parameter configuration includes: neighboring satellite interference, cross-polarization interference and repeater intermodulation interference.

[0101] See also Figure 4 As a preferred implementation, the workflow of the high-throughput satellite network resource management module includes:

[0102] receiving a communication link calculation result of the high-throughput satellite communication link calculation module, and submitting a high-throughput satellite communication resource application to a satellite operation center based on the calculation result;

[0103] Formulate a network resource allocation strategy based on the result of the application for high-throughput satellite communication resources, where the application is approved, and the network resources include a forward frequency band, a return frequency band, and an isolation frequency band;

[0104] Calculating the matching degree between the network allocation resources corresponding to the network resource allocation strategy and the budget of all satellite communication links;

[0105] If the comparison between the calculation result of the matching degree and the threshold value confirms that the two match, the network resource allocation strategy is executed; if the comparison between the calculation result of the matching degree and the threshold value confirms that the two do not match, the network resource allocation strategy is returned to be re-formulated and the matching degree is calculated based on the re-specified network resource allocation strategy;

[0106] The executing of the network resource allocation strategy includes: configuring parameters for each terminal according to the network resource allocation strategy, and establishing a high-throughput satellite communication link.

[0107] As a preferred implementation, the network resource allocation strategy includes: for a situation where multiple drones are performing tasks, manually setting the network resource allocation priority.

[0108] As a preferred implementation, the high-throughput satellite beam map module is used to provide information support for UAV mission planning and UAV beam switching.

[0109] like Figure 5 As shown, as a preferred implementation, the workflow of the high-throughput satellite network mobility management module includes:

[0110] During the flight of the UAV, when the UAV flies to the edge of the high-throughput satellite spot beam, the high-throughput satellite network mobility management module receives the UAV cross-beam switching request;

[0111] Calling the UAV beam switching analysis tool to analyze the beam switching parameters; the beam switching parameters include: the current geographic location of the UAV, the beam coverage range, and the beam edge gain;

[0112] Determine whether to perform beam switching based on the analysis result;

[0113] To switch beams, do the following:

[0114] Calling the satellite beam map module, confirming the switched target beam and the gateway to which the switched target beam and the mission beam belong, if the mission beam and the switched target beam are managed by the same gateway, there is no need to switch the gateway, if the mission beam and the switched target beam belong to different gateways, the high-throughput satellite network mobility management module performs gateway switching;

[0115] The high-throughput satellite network mobility management module sends a beam switching application instruction to the high-throughput satellite network resource management module and calls the high-throughput satellite network resource management module to lock the target beam and target gateway, establish a new satellite communication link and automatically release the original communication link resources.

[0116] As a preferred implementation, the carrier monitoring interference troubleshooting module is used to perform real-time communication interference monitoring when the UAV is performing a mission and report abnormal monitoring results to the satellite operation center in real time.

[0117] Application Example 1

[0118] Assume that there is a UAV that needs to perform a mission. The UAV is equipped with a high-throughput satellite airborne terminal, and the ground control station is equipped with a fixed high-throughput satellite communication terminal. The UAV communication link flexible setting system based on the Ka-band high-throughput satellite is deployed in the satellite operation center. The gateway stations and the gateway stations and the satellite operation center are connected by ground dedicated lines to perform the mission according to the flight route. For specific deployment, see Figure 6 .

[0119] The UAV ground control station is set to non-maneuverable, and a satellite communication link has been established between the UAV ground control station and the high-throughput satellite and the gateway station (beam 5 where the UAV ground control station is located is controlled by gateway station 1).

[0120] First, the UAV ground control station sends the UAV mission to the satellite operation center through the satellite link, and the satellite operation center's UAV communication link flexibly sets the system to receive the mission. Through the UAV mission planning module, the UAV obtains the available mission beams and mission gateways, and determines that the required beams for the UAV flight route are 1, 2, 3, and 4, all of which are controlled by gateway 2. Through the high-throughput satellite UAV link calculation module and network resource management module, the UAV obtains the available bandwidth, initial frequency, initial polarization mode, modulation and demodulation mode, etc. of the mission beam. During the mission, the high-throughput satellite network mobility management module formulates a real-time beam switching strategy based on the link budget and actual rate, and intelligently selects beams 1, 2, and 4 in the flight route to complete the satellite communication link. At the end of the flight, the UAV ground station sends a mission end command to the satellite operation center, and the system releases the mission beam and mission gateway.

[0121] Application Example 2

[0122] Assume that there is a UAV that needs to perform a mission. The UAV is equipped with a high-throughput satellite airborne terminal, and the ground control station is equipped with a fixed high-throughput satellite communication terminal. The UAV communication link flexible setting system based on the Ka-band high-throughput satellite is deployed in the satellite operation center. The gateway stations and the gateway stations and the satellite operation center are connected by ground dedicated lines to perform the mission according to the flight route. For specific deployment, see Figure 7 .

[0123] The UAV ground control station is set to non-maneuverable, and a satellite communication link has been established between the UAV ground control station and the high-throughput satellite and the gateway station (beam 5 where the UAV ground control station is located is controlled by gateway station 1).

[0124] First, the UAV ground control station sends the UAV mission to the satellite operation center through the satellite link, and the satellite operation center's UAV communication link flexibly sets the system to receive the mission. Through the UAV mission planning module, the UAV obtains the available mission beams and mission gateways, and determines that the required beams for the UAV flight route are 1, 2, 3, and 4. The mission beams belong to the gateways and are controlled by gateway 2 and gateway 3. Through the high-throughput satellite UAV link calculation module and network resource management module, the UAV obtains the available bandwidth, initial frequency, initial polarization mode, modulation and demodulation mode, etc. of the mission beam. During the mission, through the high-throughput satellite network mobility management module, a real-time beam switching strategy is formulated based on the link budget and actual rate, and beams 1, 2, and 4 are intelligently selected in the flight route to complete the satellite communication link. When the UAV moves from beam 1 to beam 2, beam 1 and beam 2 belong to different gateways. When the beam is switched, the mission gateway needs to be switched at the same time. Therefore, compared with case 1, multiple interactions between the operation center and the gateway are required. At the end of the flight, the UAV ground station sends a mission end command to the satellite operation center, and the system releases the mission beam and mission signal gateway.

[0125] The above is a specific implementation of the embodiment of the present invention. It should be pointed out that for ordinary technicians in this technical field, several improvements and modifications can be made without departing from the principle of the present invention. These improvements and modifications should also be regarded as the scope of protection of this application.

Claims

1. A flexible deployment system for UAV communication links based on Ka-band high-throughput satellites, characterized in that: It is used to quickly establish satellite flux links and flexibly apply for, configure, adjust, use and release frequency bandwidth resources of Ka-band high-throughput satellites during the entire mission cycle of initial takeoff, cross-beam flight and end of flight of UAVs, including: UAV mission planning module; high-throughput satellite communication link calculation module; high-throughput satellite network resource management module; high-throughput satellite beam map module; high-throughput satellite network mobility management module and carrier monitoring interference troubleshooting module; wherein the UAV mission planning module is bidirectionally connected to the high-throughput satellite communication link calculation module; the high-throughput satellite communication link calculation module is bidirectionally connected to the high-throughput satellite network resource management module; the high-throughput satellite network resource management module is bidirectionally connected to the high-throughput satellite network mobility management module; the high-throughput satellite network resource management module is unidirectionally connected to the carrier monitoring interference troubleshooting module; the high-throughput satellite beam map module is unidirectionally connected to the high-throughput satellite network mobility management module and the high-throughput satellite communication link calculation module; The UAV communication link flexible deployment system is configured in the satellite operation center. The UAV airborne satellite communication station, the UAV ground control station, and the gateway station communicate via satellite links through the satellite operation center. The gateway stations and the gateway station and the satellite operation center are interconnected via ground dedicated lines. The UAV mission planning module is used to automatically select a planning result for the UAV airborne satellite communication station, wherein the planning result includes one or more of a mission satellite suitable for flight, a mission beam, an available bandwidth, a predetermined specific flight area, a flight route and a flight time; The high-throughput satellite communication link calculation module is used to perform high-throughput satellite link calculation according to the planning result of the UAV mission planning module, calculate the communication margin, provide the UAV airborne satellite communication station and the UAV ground control station with UAV forward link calculation, return link calculation, ground control station forward link calculation and ground control station return link calculation, and obtain link calculation results; The high-throughput satellite network resource management module is used to apply for required resources from the satellite operation center and formulate a network resource allocation strategy to ensure that each terminal uses high-throughput satellite resources and meets the mission rate requirements; The high-throughput satellite beam map module is used to provide accurate high-throughput satellite beam map support to each module; The high-throughput satellite network mobility management module is used to provide cross-beam automatic switching support for mobile terminals; The carrier monitoring interference troubleshooting module is used to continuously monitor communication interference when the UAV is performing a mission and report monitoring abnormality results to the satellite operation center in real time.

2. According to claim 1, a flexible deployment system for UAV communication links based on Ka-band high-throughput satellites is characterized in that: The workflow of the UAV mission planning module includes: Receive the drone mission and set the mission number and mission name; Reading mission parameters, including mission time, mission area, flight route, number of drone sorties, and single-drone return rate requirements; Based on one or more of the mission parameters, preselect available high-throughput satellite resources according to actual conditions; Retrieving the high-throughput satellite beam map module and pre-selecting a mission beam, wherein the pre-selected mission beam includes determining parameters of a reserved mission high-throughput satellite, parameters of a mission beam, and parameters of a mission gateway; Querying available frequency bandwidth resources of the mission beam; During the mission cycle, the drone mission is updated in real time based on the available frequency bandwidth resources.

3. According to claim 2, a UAV communication link flexible deployment system based on Ka-band high-throughput satellite is characterized in that: The workflow of the high-throughput satellite communication link calculation module includes: Write in the parameters required for high-throughput satellite communication link calculation, including: parameters of the reserved mission high-throughput satellite, parameters of the mission beam number, parameters of the mission gateway, initial equipment parameters of the UAV airborne communication terminal and the ground communication terminal, forward link pre-configuration parameters, and on-board interference parameter configuration; Calculating required parameters based on the high-throughput satellite communication link to perform link budgeting; Write in the parameters of the communication system used by the drone, including spectrum efficiency and modulation and demodulation methods; Performing high-throughput satellite communication link calculation according to the parameters required for high-throughput satellite communication link calculation, the number of UAV sorties, and the mission area; the high-throughput satellite communication link calculation includes UAV forward link calculation, return link calculation, ground forward link calculation, and return link calculation; Calculate the communication margin and determine whether the communication margin meets the communication rate requirement for the UAV telemetry, remote control and / or reconnaissance data return; If the requirements are met, sending a resource application instruction to the high-throughput satellite network resource management module for approval by the high-throughput satellite network resource management module; If the requirements are not met, return to the UAV mission planning module, reconfigure and adjust the mission parameters, and re-plan the mission and the communication link budget.

4. The flexible deployment system for UAV communication links based on Ka-band high-throughput satellite according to claim 3 is characterized in that: The parameters of the reserved mission high-throughput satellite include satellite name and orbital position; The parameters of the mission beam number include bandwidth, uplink frequency, downlink frequency, uplink polarization and downlink polarization; The parameters of the mission gateway station include location, antenna aperture, power amplifier output power, power amplifier back-off, pointing loss, feeder loss, satellite to master station EIRP and G / T; The initial equipment parameters of the UAV airborne communication terminal and the ground communication terminal include: position, antenna aperture, power amplifier output power, power amplifier back-off, pointing loss, feeder loss, satellite to master station EIRP and G / T; The forward link pre-configuration parameters include: available bandwidth, link margin, weather model and baseband parameters; The on-board interference parameter configuration includes: neighboring satellite interference, cross-polarization interference and repeater intermodulation interference.

5. The flexible deployment system for UAV communication links based on Ka-band high-throughput satellite according to claim 4 is characterized in that: The workflow of the high-throughput satellite network resource management module includes: receiving a communication link calculation result of the high-throughput satellite communication link calculation module, and submitting a high-throughput satellite communication resource application to a satellite operation center based on the calculation result; Formulate a network resource allocation strategy based on the result of the application for high-throughput satellite communication resources, where the application is approved, and the network resources include a forward frequency band, a return frequency band, and an isolation frequency band; Calculating the matching degree between the network allocation resources corresponding to the network resource allocation strategy and the budget of all satellite communication links; If the comparison between the calculation result of the matching degree and the threshold value confirms that the two match, the network resource allocation strategy is executed; if the comparison between the calculation result of the matching degree and the threshold value confirms that the two do not match, the network resource allocation strategy is returned to be re-formulated and the matching degree is calculated based on the re-specified network resource allocation strategy; The executing of the network resource allocation strategy includes: configuring parameters for each terminal according to the network resource allocation strategy, and establishing a high-throughput satellite communication link.

6. The flexible deployment system for UAV communication links based on Ka-band high-throughput satellite according to claim 5 is characterized in that: The network resource allocation strategy includes: manually setting the network resource allocation priority for the situation where multiple drones are performing tasks.

7. The flexible deployment system for UAV communication links based on Ka-band high-throughput satellite according to claim 6 is characterized in that: The high-throughput satellite beam map module is used to provide information support for UAV mission planning and UAV beam switching, and automatically compares and updates the data set with the latest version of the satellite operation center.

8. The flexible deployment system for UAV communication links based on Ka-band high-throughput satellite according to claim 7 is characterized in that: The workflow of the high-throughput satellite network mobility management module includes: During the flight of the UAV, when the UAV flies to the edge of the high-throughput satellite spot beam, the high-throughput satellite network mobility management module receives the UAV cross-beam switching request; Calling the UAV beam switching analysis tool to analyze the beam switching parameters; the beam switching parameters include: the current geographic location of the UAV, the beam coverage range, and the beam edge gain; Based on the analysis results, it is determined whether to perform beam switching.

9. The flexible deployment system for UAV communication links based on Ka-band high-throughput satellite according to claim 8 is characterized in that: The beam switching is performed as follows: Calling the satellite beam map module, confirming the switched target beam and the gateway to which the switched target beam and the mission beam belong, if the mission beam and the switched target beam are managed by the same gateway, there is no need to switch the gateway, if the mission beam and the switched target beam belong to different gateways, the high-throughput satellite network mobility management module performs gateway switching; The high-throughput satellite network mobility management module sends a beam switching application instruction to the high-throughput satellite network resource management module and calls the high-throughput satellite network resource management module to lock the target beam and target gateway, establish a new satellite communication link and automatically release the original communication link resources.

10. An electronic device, which is used in conjunction with the system described in any one of claims 1-9, wherein the unmanned aerial vehicle mission planning module; the high-throughput satellite communication link calculation module; the high-throughput satellite network resource management module; the high-throughput satellite beam map module; the high-throughput satellite network mobility management module and the carrier monitoring interference troubleshooting module are run on the electronic device in the form of computer program software to execute a method for flexible deployment of unmanned aerial vehicle communication links based on Ka-band high-throughput satellites.

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