Satellite zero calibration ranging method and system based on dynamic change of switch zero value

By measuring the changes in the zero value of the switch, the satellite zero-calibration method calculates the zero value of the ground channel equipment through the signal path of the baseband board, switch, and self-loop zero-calibration matrix, eliminating the influence of the change in the zero value of the switch on satellite ranging, and realizing accurate satellite measurement and normal operation.

CN116594031BActive Publication Date: 2026-07-03CHINA ELECTRONIC TECH GRP CORP NO 38 RES INST
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Patents(China)
Current Assignee / Owner
CHINA ELECTRONIC TECH GRP CORP NO 38 RES INST
Filing Date
2023-03-13
Publication Date
2026-07-03

AI Technical Summary

Technical Problem

The dynamic changes in the zero value of the switch affect the accuracy of satellite ranging, making it impossible for the ground to accurately locate the satellite, thus affecting the normal use of the satellite and its service targets.

Method used

The first zeroing distance value is measured by passing the signal sequentially through the baseband board, switch, and self-loop zeroing matrix and returning; then the second zeroing distance value is measured by passing the signal sequentially through the baseband board, switch, and ground channel equipment and returning; and the zero value of the ground channel equipment is calculated based on these distance values ​​and the zero value of the self-loop zeroing matrix, thereby eliminating the influence of the change in the zero value of the switch.

Benefits of technology

It enables accurate measurement of satellite distance, ensuring the normal operation of the satellite. The process is simple and easy to implement.

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Abstract

The application discloses a satellite zero calibration ranging method and system based on zero value dynamic change of a switch, wherein a signal sequentially passes through a baseband board card, a switch and a self-loop zero calibration matrix and returns, a first zero calibration distance value is measured, a signal sequentially passes through the baseband board card, the switch and ground channel equipment and returns, a second zero calibration distance value is measured, and a zero value of the ground channel equipment is calculated according to the first zero calibration distance value, the second zero calibration distance value and the zero value of the self-loop zero calibration matrix. The ranging method is simple in process operation and easy to realize, the zero calibration process is increased by the self-loop zero calibration matrix, the influence of the change of the zero value of the switch on the ranging value is eliminated, and the normal work of the satellite is ensured.
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Citation Information

Patent Citations

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