Highly maneuverable satellite on-the-move communication system and method based on phased array steered spot beam

Abstract

The application discloses a high-mobility satellite dynamic communication system and method based on phased array agile point beam, and belongs to the field of satellite communication. The system comprises a geosynchronous stationary orbit communication satellite constellation of a space section, a management and control center, an integrated gateway and an interconnected network of a ground control section, all satellite earth stations of a user section, an intersatellite link between adjacent satellites in the space section, and a satellite-ground link between the user section and the space section. In the system, the high-mobility dynamic communication satellite earth station periodically reports position information and the like, drives a satellite-borne network controller to dynamically adjust the center pointing of the phased array agile point beam in real time, so that the phased array agile point beam tracks and stares at the high-mobility dynamic communication satellite earth station in real time, completes satellite-ground communication service transmission through a satellite-ground user link in the beam, and realizes single-hop service transmission with other users through on-satellite routing switching, so that the system can meet the communication support requirements of a single high-mobility user or a high-mobility user group.

Description

Technical Field

[0001] This invention belongs to the field of satellite communication technology, particularly the field of satellite communication on the move for various highly maneuverable platforms such as high-speed aircraft or spacecraft, and high-speed surface or underwater vehicles. Specifically, it relates to a highly maneuverable satellite communication system and method based on phased array agile point beams. Background Technology

[0002] Traditional mobile satellite earth stations, such as vehicle-mounted, ship-mounted, and airborne stations, have relatively small operating areas and relatively low movement speeds. They can provide basic mobile satellite communication services using the shaped area beams or mechanically movable point beams of geostationary orbit communication satellites. However, high-speed aircraft or spacecraft, high-speed surface or underwater vehicles, and other highly mobile platforms have characteristics such as wide operating ranges, high platform speeds, large accelerations, and rapid attitude changes. Their operating ranges exceed the coverage of the shaped area beams of satellites, and their platform speeds exceed the movement speeds of mechanically movable point beams. Consequently, it is impossible to provide usable coverage and mobile satellite communication services for these highly mobile platforms. Summary of the Invention

[0003] To address the aforementioned problems, this invention provides a highly mobile satellite communication system and method based on a phased array agile point beam. The phased array agile point beam antenna in the system can be dynamically adjusted in real time to provide mobile coverage services to the satellite earth station with real-time tracking and staring support. The satellite earth station, under the coverage of the phased array agile point beam antenna, completes communication service transmission through uplink and downlink planetary-to-ground user links.

[0004] To achieve the above objectives, the technical solution adopted by the present invention is as follows:

[0005] A highly maneuverable satellite communication system based on phased array agile spot beams includes:

[0006] The space segment comprises a geostationary orbit communication satellite constellation containing at least one communication satellite. Inter-satellite links exist between adjacent communication satellites for networking applications, supporting inter-satellite relay transmission of signaling, telemetry, and command (TT&C) services, and communication services. Each communication satellite carries a communication payload, including: a global signaling beam antenna for broadcasting and receiving signaling over its line-of-sight area; a feed beam antenna for establishing feed links with the ground control segment; a shaped area beam antenna for providing communication coverage to a fixed geographical area; a phased array agile point beam antenna for forming a movable point beam coverage area through electronic scanning; a routing, switching, processing, and repeater for onboard routing and switching of communication services; and an onboard network controller for managing beam resources, processing signaling, and controlling the pointing of the phased array agile point beam antenna.

[0007] The ground control segment includes: a control center for centralized management, control, and resource scheduling; and an integrated gateway station equipped with ground-feed beam antennas and telemetry and control antennas for establishing feed links and telemetry and control links with the space segment.

[0008] The user segment includes: a satellite earth station for establishing a satellite-to-ground signaling link with the global signaling beam antenna and for establishing a satellite-to-ground user link with the phased array agile point beam antenna during movement; and zero or more other user satellite earth stations for establishing a satellite-to-ground signaling link with the global signaling beam antenna and for establishing a satellite-to-ground user link with the shaped area beam antenna.

[0009] The onboard network controller receives information from the satellite earth station in real time, including position and motion status, and calculates and controls the beam center direction of the phased array agile point beam antenna in real time, so that the phased array agile point beam continuously tracks and covers the satellite earth station.

[0010] Furthermore, the half-power beamwidth of the global signaling beam antenna is not less than 17.4°, providing fixed coverage of the entire line of sight of the communication satellite to the Earth and providing signaling service access for the satellite earth station; the global signaling beam antenna, the feed beam antenna and the onboard network controller work together to relay signaling messages between the control center, the onboard network controller and all user satellite earth stations.

[0011] Furthermore, the transmission path of the signaling message includes:

[0012] Signaling messages sent by the satellite earth station and destined for the onboard network controller are directly delivered to the onboard network controller via the planetary-to-ground signaling link of the global signaling beam antenna.

[0013] Signaling messages sent by the satellite earth station and destined for the control center are transmitted to the onboard network controller via the uplink planetary ground signaling link of the global signaling beam antenna, and relayed to the integrated gateway station via the downlink feed link of the feed beam antenna, and finally delivered to the control center via the interconnection network; signaling messages sent by the control center and destined for the satellite earth station are transmitted to the integrated gateway station via the interconnection network, transmitted to the onboard network controller via the uplink feed link of the feed beam antenna, and broadcast to the target satellite earth station via the downlink planetary ground signaling link of the global signaling beam antenna.

[0014] Signaling messages sent by the control center and destined for the onboard network controller are sent to the integrated gateway station via the interconnection network, and then sent to the onboard network controller via the uplink feed link of the feed beam antenna; signaling messages sent by the onboard network controller and destined for the control center are sent to the integrated gateway station via the downlink feed link of the feed beam antenna, and then sent to the control center via the interconnection network.

[0015] Furthermore, the routing switching processing repeater performs routing selection for communication services passing through the planetary-to-ground user link and switches them to the target downlink beam antenna, which includes: a feed beam antenna, a shaped area beam antenna, or a phased array agile point beam antenna.

[0016] Furthermore, the onboard network controller controls the phased array agile spot beam antenna in real time for pointing, and the specific process is as follows:

[0017] Receive signaling messages periodically reported by the satellite earth station; these signaling messages include the transmission time. ,longitude ,latitude , ground speed and heading angle Get the current time on the star. Calculate transmission delay According to the formula and Calculate the time delay of the Earth station The longitude and latitude displacements within the Earth's radius, where R is the Earth's radius; predict the new location of the satellite earth station based on these longitude and latitude displacements: new location longitude and new location latitude The center of the phased array agile point beam antenna is controlled to point to the new position.

[0018] A method for on-the-move communication of highly maneuverable satellites based on phased array agile point beams, applied to the aforementioned highly maneuverable satellite on-the-move communication system based on phased array agile point beams, specifically includes the following steps:

[0019] Step 1: Power on the satellite earth station, search for and lock onto the communication satellite;

[0020] Step 2: The satellite earth station receives system parameters and timing information broadcast by the onboard network controller, and completes the initial parameter configuration and time synchronization;

[0021] Step 3: The satellite earth station initiates a network registration request to the control center to complete the network access process;

[0022] Step 4: The satellite earth station and the onboard network controller exchange signals to complete high-precision satellite-to-ground time synchronization calibration;

[0023] Step 5: The satellite earth station requests the allocation of phased array agile point beam resources from the control center; during the maneuver, the satellite earth station periodically reports its own position and motion status information to the onboard network controller; the onboard network controller dynamically adjusts the pointing of the phased array agile point beam antenna in real time according to the reported information, so as to continuously track and cover the satellite earth station.

[0024] Step 6: Under the coverage of the control array agile point beam, the satellite earth station transmits communication services through the satellite-to-ground user link;

[0025] Step 7: After the mission is completed, the satellite Earth requests the release of beam resources and performs a network decommissioning operation.

[0026] Furthermore, the high-precision satellite-to-ground time synchronization calibration steps include:

[0027] Step 401, Satellite Earth Station local time Send a time synchronization calibration request message to the onboard network controller;

[0028] Step 402, the onboard network controller is in orbit at the following time. The request was received, and at time Send a time synchronization calibration response message to the satellite earth station. The response message contains... and ;

[0029] Step 403, Satellite Earth Station local time After receiving the response message; calculate the deviation between the local time and the satellite time. And add a deviation to the local clock time. Compensation and correction are used to achieve time synchronization with the onboard clock.

[0030] The beneficial effects of adopting the above-mentioned optimized technical solution are as follows:

[0031] 1. This invention provides a satellite communication system and method for various highly mobile platforms, such as high-speed aircraft or spacecraft, and high-speed surface or underwater vehicles, enabling real-time tracking and observational support. The satellite earth station periodically reports its position and other information, driving the onboard network controller to dynamically adjust the center pointing of the phased array agile point beam antenna in real time. This allows the phased array agile point beam antenna to track and observe the satellite earth station in real time, and complete communication service transmission through the uplink and downlink planetary-to-ground user links in the phased array agile point beam. This can meet the mobile communication support needs of a single highly mobile user or a group of highly mobile users.

[0032] 2. The on-board phased array agile point beam antenna used in this invention has high transmit and receive gain, which can concentrate the satellite power for radiation, reducing the transmit and receive capability requirements of highly mobile satellite earth stations; the phased array agile point beam antenna has fast agility and real-time beam pointing adjustment, which can provide continuous tracking and accompanying coverage for highly mobile platforms; the mobile service area of ​​the phased array agile point beam antenna covers the entire line of sight of the satellite to the Earth, ensuring a wider service area than the shaped area beam.

[0033] 3. The on-board phased array agile spot beam antenna used in this invention has a small coverage area, good spatial isolation of the signal, on-board processing and forwarding, and strong anti-interference performance; the on-board routing and switching supports single-hop communication with other users, and the end-to-end communication service transmission latency is small. Attached Figure Description

[0034] Figure 1 This is a schematic diagram of the principle of a highly maneuverable satellite communication system based on phased array agile point beams in an embodiment of the present invention.

[0035] Figure 2 This is a schematic diagram of a process method in which the center of a phased array point beam is controlled to point in real time toward the satellite earth station being served, according to an embodiment of the present invention.

[0036] Figure 3 This is a flowchart of a highly maneuverable satellite communication method based on phased array agile point beams in an embodiment of the present invention.

[0037] Figure 4 This is a flowchart of the satellite-to-ground time synchronization method in an embodiment of the present invention. Detailed Implementation

[0038] The present invention will now be described in further detail with reference to the accompanying drawings.

[0039] like Figure 1 As shown, a highly maneuverable satellite communication system based on phased array agile point beams includes: a geostationary orbit communication satellite constellation (multiple communication satellites) in the space segment, a control center, integrated gateway station and interconnection network in the ground control segment, all satellite earth stations in the user segment, inter-satellite links between neighboring satellites in the space segment, and satellite-to-ground links between the user segment and the space segment.

[0040] The geostationary orbit communication satellite constellation within the space segment comprises multiple communication satellites (full name: geostationary orbit communication satellites). Inter-satellite links exist between adjacent satellites for inter-satellite relay transmission of signaling, telemetry, tracking, and command (TT&C) services, enabling networking applications among satellites within the constellation. Each communication satellite includes a communication payload subsystem and a satellite platform subsystem. The communication payload subsystem comprises an antenna subsystem and a processing transponder subsystem. The antenna subsystem includes: one global signaling beam antenna for providing signaling broadcasting and reception covering the entire Earth-viewing area of ​​the satellite; and one feed beam antenna for establishing communication with the ground control segment. Ground-fed link; zero or more shaped area beam antennas for providing communication coverage to fixed geographical areas; at least one phased array agile point beam antenna for forming a movable point beam coverage area through electronic scanning; processing transponder subsystem including routing and switching processing transponders, onboard network controller, etc.; routing and switching processing transponders for onboard routing and switching of communication services; onboard network controller for managing beam resources, processing signaling, and controlling the pointing of phased array agile point beam antennas; transmission of telemetry and control services between the satellite telemetry and control antennas of the telemetry and control subsystem and the telemetry and control antenna equipment of the integrated gateway station in the satellite platform subsystem;

[0041] The ground control segment includes: a control center, which centrally manages all communication satellites within the space segment, multiple integrated gateway stations within the ground control segment, and all satellite earth stations within the user segment, for centralized management, control, and resource scheduling of the system; integrated gateway stations, equipped with ground-feed beam antennas and telemetry, tracking, and command (TT&C) antennas, with the ground-feed beam antennas located within their coverage area, providing the satellite-to-ground feed link between the ground control segment and the space segment; and TT&C antennas located within the coverage area of ​​the satellite TT&C antennas, providing the satellite-to-ground TT&C link between the ground control segment and the space segment. The satellite-to-ground feed link is used to relay signaling services between the control center and the onboard network controller, between the control center and each user satellite earth station, and between each user satellite earth station and users outside the satellite network. Control centers, integrated gateway stations, and control centers and integrated gateway stations are interconnected through the interconnection network within the ground control segment.

[0042] The user segment includes: a satellite earth station (full name: high-mobility mobile communication satellite earth station), used to establish a satellite-to-ground signaling link with the global signaling beam antenna, and to establish a satellite-to-ground user link with the phased array agile point beam antenna during movement. The satellite earth station uses the on-board phased array agile point beam to provide mobile communication services to users; zero or more other user satellite earth stations, used to establish a satellite-to-ground signaling link with the global signaling beam antenna, and to establish a satellite-to-ground user link with the shaped area beam antenna. Other user satellite earth stations use the shaped area beam to provide stationary or mobile communication services to users.

[0043] The onboard network controller receives information on position and motion status reported by the satellite earth station in real time, and calculates and controls the beam center direction of the phased array agile spot beam antenna in real time, so that the spot beam continuously tracks and covers the satellite earth station.

[0044] The satellite-to-ground links between the user segment and the space segment include: satellite-to-ground signaling links between each satellite earth station and the global signaling beam antenna; satellite-to-ground user links between satellite earth stations and phased array agile point beam antennas; and satellite-to-ground user links between other user satellite earth stations and shaped area beam antennas. The satellite-to-ground user links are used for uplink and downlink communication service transmission at each satellite earth station.

[0045] The global signaling beam antenna has a half-power beamwidth of not less than 17.4°, providing fixed coverage of the entire line of sight of the communication satellite to the Earth and providing signaling service access for user satellite earth stations. The global signaling beam antenna, the feed beam antenna, and the onboard network controller work together to relay signaling messages between the control center, the onboard network controller, and all user satellite earth stations.

[0046] The transmission path of the signaling message includes:

[0047] Signaling messages sent by the satellite earth station and destined for the onboard network controller are directly delivered to the onboard network controller via the planetary-to-ground signaling link of the global signaling beam antenna.

[0048] Signaling messages sent by the satellite earth station and destined for the control center are transmitted to the onboard network controller via the uplink planetary ground signaling link of the global signaling beam antenna, and relayed to the integrated gateway station via the downlink feed link of the feed beam antenna, and finally delivered to the control center via the interconnection network. Signaling messages sent by the control center and destined for the satellite earth station are transmitted to the integrated gateway station via the interconnection network, transmitted to the onboard network controller via the uplink feed link of the feed beam antenna, and broadcast to the target satellite earth station via the downlink planetary ground signaling link of the global signaling beam antenna.

[0049] Signaling messages sent by the control center and destined for the onboard network controller are sent to the integrated gateway station via the interconnection network, and then sent to the onboard network controller via the uplink feed link of the feed beam antenna; signaling messages sent by the onboard network controller and destined for the control center are sent to the integrated gateway station via the downlink feed link of the feed beam antenna, and then sent to the control center via the interconnection network.

[0050] The shaped area beam antenna uses a beamforming antenna to cover a fixed geographical area and is used to provide stationary or mobile communication services to other user satellite earth stations within the coverage service area.

[0051] Each phased array agile spot beam antenna dynamically adjusts the beam direction through electronic beamforming technology to change the position of the spot beam coverage area, forming a mobile service area that covers the entire field of view of the satellite on Earth.

[0052] like Figure 2 As shown, the real-time control process of the phased array agile point beam pointing by the onboard network controller is as follows:

[0053] (1) Receive signaling messages periodically reported by the satellite earth station. The content of the message includes, but is not limited to, the transmission time. ,longitude ,latitude , ground speed and heading angle ;

[0054] (2) Obtain the current time on the satellite Calculate transmission delay ;

[0055] (3) According to the formula and The onboard network controller calculates the time delay of the satellite earth station. The longitude and latitude displacements within the Earth's radius, where R is the Earth's radius; predict the new location of the Earth station based on these longitude and latitude displacements: the longitude of the new location. and the latitude of the new location ;

[0056] (4) Control the center of the phased array agile point beam to point to the new position. , ).

[0057] like Figure 3 As shown, a highly maneuverable satellite communication method based on phased array agile point beams specifically includes the following steps:

[0058] Step 1: Power on the satellite earth station, search for and lock onto the communication satellite;

[0059] Step 2: The satellite earth station receives system parameters and timing information broadcast by the onboard network controller, and completes the initial parameter configuration and time synchronization;

[0060] Step 3: The satellite earth station initiates a network registration request to the control center to complete the network access process;

[0061] Step 4: The satellite earth station and the onboard network controller exchange signals to complete high-precision satellite-to-ground time synchronization calibration;

[0062] Step 5: The satellite earth station requests the allocation of phased array agile point beam resources from the control center; during the maneuver, the satellite earth station periodically reports its own position and motion status information to the onboard network controller; the onboard network controller dynamically adjusts the pointing of the phased array agile point beam antenna in real time according to the reported information, so as to continuously track and cover the satellite earth station.

[0063] Step 6: Under the coverage of the control array agile point beam, the satellite earth station transmits communication services through the satellite-to-ground user link;

[0064] Step 7: After the mission is completed, the satellite Earth requests the release of beam resources and performs a network decommissioning operation.

[0065] like Figure 4 As shown, the high-precision satellite-to-ground time synchronization calibration step described in step 4 above includes:

[0066] Step 401, Satellite Earth Station local time Send a time synchronization calibration request message to the onboard network controller;

[0067] Step 402, the onboard network controller is in orbit at the following time. The request was received, and at time Send a time synchronization calibration response message to the satellite earth station. The response message contains... and ;

[0068] Step 403, Satellite Earth Station local time After receiving the response message; calculate the deviation between the local time and the satellite time. And add a deviation to the local clock time. Compensation and correction are used to achieve time synchronization with the onboard clock.

[0069] The communication service transmission of the satellite earth station includes:

[0070] The uplink communication service of the satellite earth station is sent to the routing and switching processing repeater via the uplink planetary-to-ground user link of the phased array agile point beam. After routing and switching, it is sent to the shaped area beam antenna, or another phased array agile point beam antenna, or a feed beam antenna to reach the final destination.

[0071] Downlink communication services destined for the satellite earth station are sent to the routing and switching processing transceiver via the uplink feed link of the feed beam antenna, or the upper planetary ground user link of the shaped area beam, or the upper planetary ground user link of the phased array agile point beam. After routing and switching, the services are delivered to the satellite earth station via the lower planetary ground user link of the phased array agile point beam.

[0072] In summary, this invention provides a satellite communication system and method for highly mobile platforms, employing an onboard phased array agile point beam, enabling real-time tracking and gaze-based support. The highly mobile communication satellite earth station periodically reports its position and other information, driving the onboard network controller to dynamically adjust the center direction of the phased array agile point beam in real time. This allows the phased array agile point beam to track and gaze-based support the highly mobile communication satellite earth station in real time. Communication services are transmitted through the uplink and downlink planetary-to-ground user links within the phased array agile point beam, and single-hop service transmission with other users is achieved through onboard routing and switching. This can meet the mobile communication support needs of individual highly mobile users or groups of highly mobile users.

[0073] The above-described embodiments are merely illustrative of several implementations of the present invention, and while the descriptions are relatively specific and detailed, they should not be construed as limiting the scope of the present invention. It should be noted that those skilled in the art can make various modifications and improvements without departing from the concept of the present invention. Any modifications, equivalent substitutions, and improvements made within the spirit and principles of the present invention should be included within the scope of protection of the present invention. Therefore, the scope of protection of this patent should be determined by the appended claims.

Claims

1. A highly maneuverable satellite communication system based on phased array agile point beams, characterized in that, include: The space segment comprises a geostationary orbit communication satellite constellation containing at least one communication satellite. Inter-satellite links exist between adjacent communication satellites for networking applications, supporting inter-satellite relay transmission of signaling, telemetry, and command (TT&C) services, and communication services. Each communication satellite carries a communication payload, including: a global signaling beam antenna for broadcasting and receiving signaling over its line-of-sight area; a feed beam antenna for establishing feed links with the ground control segment; a shaped area beam antenna for providing communication coverage to a fixed geographical area; a phased array agile point beam antenna for forming a movable point beam coverage area through electronic scanning; a routing, switching, processing, and repeater for onboard routing and switching of communication services; and an onboard network controller for managing beam resources, processing signaling, and controlling the pointing of the phased array agile point beam antenna. The ground control segment includes: a control center for centralized management, control, and resource scheduling; and an integrated gateway station equipped with ground-feed beam antennas and telemetry and control antennas for establishing feed links and telemetry and control links with the space segment. The user segment includes: a satellite earth station for establishing a satellite-to-ground signaling link with the global signaling beam antenna and for establishing a satellite-to-ground user link with the phased array agile point beam antenna during movement; and zero or more other user satellite earth stations for establishing a satellite-to-ground signaling link with the global signaling beam antenna and for establishing a satellite-to-ground user link with the shaped area beam antenna. The onboard network controller receives information from the satellite earth station in real time, including position and motion status, and calculates and controls the beam center direction of the phased array agile point beam antenna in real time, so that the phased array agile point beam continuously tracks and covers the satellite earth station.

2. The highly maneuverable satellite communication system based on phased array agile point beams according to claim 1, characterized in that, The global signaling beam antenna has a half-power beamwidth of not less than 17.4°, providing fixed coverage of the entire line of sight of the communication satellite to the Earth and providing signaling service access for the satellite earth station. The global signaling beam antenna, the feed beam antenna, and the onboard network controller work together to relay signaling messages between the control center, the onboard network controller, and all user satellite earth stations.

3. A highly maneuverable satellite communication system based on phased array agile point beams according to claim 2, characterized in that, The transmission path of the signaling message includes: Signaling messages sent by the satellite earth station and destined for the onboard network controller are directly delivered to the onboard network controller via the planetary-to-ground signaling link of the global signaling beam antenna. Signaling messages sent by the satellite earth station and destined for the control center are transmitted to the onboard network controller via the uplink planetary ground signaling link of the global signaling beam antenna, and relayed to the integrated gateway station via the downlink feed link of the feed beam antenna, and finally delivered to the control center via the interconnection network; signaling messages sent by the control center and destined for the satellite earth station are transmitted to the integrated gateway station via the interconnection network, transmitted to the onboard network controller via the uplink feed link of the feed beam antenna, and broadcast to the target satellite earth station via the downlink planetary ground signaling link of the global signaling beam antenna. Signaling messages sent by the control center and destined for the onboard network controller are sent to the integrated gateway station via the interconnection network, and then sent to the onboard network controller via the uplink feed link of the feed beam antenna; signaling messages sent by the onboard network controller and destined for the control center are sent to the integrated gateway station via the downlink feed link of the feed beam antenna, and then sent to the control center via the interconnection network.

4. A highly maneuverable satellite communication system based on on-board phased array agile point beams according to claim 1, characterized in that, The routing switching processing repeater performs routing selection for communication services passing through the planetary-to-ground user link and switches them to the target downlink beam antenna, which includes: a feed beam antenna, a shaped area beam antenna, or a phased array agile point beam antenna.

5. A highly maneuverable satellite communication system based on phased array agile point beams according to claim 1, characterized in that, The onboard network controller controls the phased array agile spot beam antenna to point in real time, and the specific process is as follows: Receive signaling messages periodically reported by the satellite earth station; these signaling messages include the transmission time. ,longitude ,latitude , ground speed and heading angle Get the current time on the star. Calculate transmission delay According to the formula and Calculate the time delay of the Earth station The longitude and latitude displacements within the Earth's radius, where R is the Earth's radius; predict the new location of the satellite earth station based on these longitude and latitude displacements: new location longitude and new location latitude The center of the phased array agile point beam antenna is controlled to point to the new position.

6. A method for high-mobility satellite communication on the move based on phased array agile point beams, characterized in that, The application to a highly maneuverable satellite communication system based on phased array agile spot beams as described in any one of claims 1-5 specifically includes the following steps: Step 1: Power on the satellite earth station, search for and lock onto the communication satellite; Step 2: The satellite earth station receives system parameters and timing information broadcast by the onboard network controller, and completes the initial parameter configuration and time synchronization; Step 3: The satellite earth station initiates a network registration request to the control center to complete the network access process; Step 4: The satellite earth station and the onboard network controller exchange signals to complete high-precision satellite-to-ground time synchronization calibration; Step 5: The satellite earth station requests the allocation of phased array agile point beam resources from the control center; during the maneuver, the satellite earth station periodically reports its own position and motion status information to the onboard network controller; the onboard network controller dynamically adjusts the pointing of the phased array agile point beam antenna in real time according to the reported information, so as to continuously track and cover the satellite earth station. Step 6: Under the coverage of the control array agile point beam, the satellite earth station transmits communication services through the satellite-to-ground user link; Step 7: After the mission is completed, the satellite Earth requests the release of beam resources and performs a network decommissioning operation.

7. A method for high-mobility satellite communication on the move based on phased array agile point beams according to claim 6, characterized in that, The steps of the high-precision satellite-to-ground time synchronization calibration include: Step 401, Satellite Earth Station local time Send a time synchronization calibration request message to the onboard network controller; Step 402, the onboard network controller is in orbit at the following time. The request was received, and at time Send a time synchronization calibration response message to the satellite earth station. The response message contains... and ; Step 403, Satellite Earth Station local time After receiving the response message; calculate the deviation between the local time and the satellite time. And add a deviation to the local clock time. Compensation and correction are used to achieve time synchronization with the onboard clock.

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