Agile satellite relay real transmission method and device based on attitude extrapolation and medium

Through the combination of servo controller and GPS broadcast data, attitude broadcast data is used to perform attitude extrapolation and calculate the direction angle of the relay antenna, solving the problem that agile satellite relay antenna cannot be tracked, and achieving efficient relay real transmission and data timeliness.

CN119652386APending Publication Date: 2025-03-18AEROSPACE DONGFANGHONG SATELLITE
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Patent Information

Application Number
CN202411611271.0
Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
Filing Date
2024-11-12
Publication Date
2025-03-18

AI Technical Summary

Technical Problem

When agile satellites perform multi-target or multi-band tasks, their fast attitude maneuvering causes the relay antenna to fail to rotate in time, and the real-time transmission mode cannot be achieved.

Method used

The servo controller receives the relay satellite orbit and GPS broadcast data, determines the position and speed of the satellite platform, and uses the attitude broadcast data to perform attitude extrapolation, calculates the attitude angle information at the next calculation pointing moment, so as to perform direction calculation and limit judgment of the relay antenna to ensure that the relay antenna can track the relay satellite.

Benefits of technology

It solves the problem that the relay antenna cannot be tracked throughout the process due to the rapid maneuvering of agile satellites, and realizes the real-time transmission of relays during the agile maneuver of ground observation satellites, improving the efficiency and timeliness of data return.

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Abstract

The invention relates to an agile satellite relay real transmission method and device based on attitude extrapolation and a medium. The method comprises the steps that S1, a servo controller receives a relay satellite orbit sent by a satellite platform and extrapolates the position and speed of a relay satellite; s2, receiving GPS broadcast data, and determining the position and speed of a satellite platform; s3, attitude broadcast data are received, and satellite platform attitude extrapolation is completed; and S4, the relay antenna is driven to track the relay satellite through coordinate conversion and antenna limiting judgment. According to the method, relay link resources can be effectively utilized, the data return efficiency can be improved, meanwhile, the agile satellite can realize multifunctional and fast-response imaging efficiency by utilizing fast maneuvering, and the timeliness of data acquisition can also be ensured.
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