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Autonomous calibration method for satellite-borne beam antenna

A calibration method and antenna calibration technology, applied in radio transmission systems, electrical components, transmission systems, etc., can solve problems such as error-prone, heavy operation workload, and complex antenna calibration process.

Active Publication Date: 2020-04-17
CHINA ACADEMY OF SPACE TECHNOLOGY
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  • Application Information

AI Technical Summary

Problems solved by technology

The antenna calibration process is complicated, and manual operations on the ground are heavy and error-prone during on-orbit operation

Method used

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  • Autonomous calibration method for satellite-borne beam antenna
  • Autonomous calibration method for satellite-borne beam antenna
  • Autonomous calibration method for satellite-borne beam antenna

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[0083] The antenna calibration function should be disabled by default, and it can be enabled by the ground remote control after entering the working orbit. Inject several sets of parameters needed for daily calibration. According to the satellite time, the calibration of each group of antenna parameters is performed independently every day. There are adjustments to the calibration plan, which can be executed according to the design method of the satellite-ground interface.

[0084] Perform an antenna calibration process according to each set of calibration parameters. For details, see figure 2 As shown, the required self-generated instructions are shown in the following table:

[0085] Antenna calibration parameters and command generation mapping table

[0086]

[0087] The calibration steps are described below:

[0088] (1) First judge whether the time in the calibration parameters has expired (and has not timed out, for example, the timeout time is 10 seconds) and wh...

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Abstract

The invention discloses an autonomous calibration method for a satellite-borne beam antenna. The method comprises the steps of firstly, judging whether time in calibration parameters is up and is notovertime or not; according to the calibration antenna selected from the calibration parameters, sending a waveguide switch matrix switching instruction to a sum and difference signal; sending a sum and difference signal access capture and tracking receiver instruction according to the capture and tracking receiver selected from the calibration parameters; powering up the capturing and following receiver according to the selected capturing and following receiver in the calibration parameters, powering up an antenna controller on duty, and connecting an on-duty antenna driving circuit with a motor winding for conduction; judging an initial state before tracking; sending an instruction for injecting phase factors and zero angles of an on-duty antenna and an on-duty capture and tracking receiver, sending an instruction sequence for starting software limiting and motor power-up maintenance, then carrying out state setting telemetering confirmation, and sending an instruction to start self-tracking after confirming that the state is normal; sending an instruction to close self-tracking; and executing the on-duty winding power-off instruction, and ending the calibration task. According tothe invention, the problems of large workload and error proneness of manual operation on the ground during on-orbit operation are solved.

Description

technical field [0001] The invention relates to a self-calibrating method for a satellite carrier beam antenna, which is suitable for timing and self-calibrating the antenna by satellite software. Background technique [0002] Satellite multibeam antenna calibration relies on beacon signals sent by ground-based calibration stations. The calibration subsystem measures the angular position error when the tracking axis of the user beam antenna deviates from the target in time-sharing, and converts the angular position error into an electrical signal that can control the movement of the user beam antenna, and controls the user beam antenna to move in the direction where the error signal decreases. Finally, the calibration beam of the user beam antenna is aimed at the ground station to realize the pointing calibration of the user beam antenna. [0003] During the in-orbit operation of the communication satellite multi-beam antenna, it is necessary to continuously adjust the east...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H04B7/185
CPCH04B7/18519
Inventor 王君尹伟臻杨政委
Owner CHINA ACADEMY OF SPACE TECHNOLOGY
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