Method for testing consistency of spacecraft ranging results and ranging benchmark changes

Abstract

The invention provides a method for testing the consistency of a spacecraft ranging result and a ranging reference change. The method comprises the following steps: obtaining a ranging result of ground baseband equipment through the ground baseband equipment; recording the clock difference between the spacecraft to be measured and the ground time-frequency reference equipment through clock difference recording equipment; obtaining a distance measurement result of the measured spacecraft after the orbit dynamic theoretical value is eliminated through a dynamic simulation unit; recording a measured spacecraft ranging result, a baseband equipment ranging result and a clock error before the ranging reference changes; adjusting the ranging reference of the spacecraft, and measuring and recording the ranging result of the measured spacecraft, the ranging result of the baseband equipment and the clock error after the reference is changed; and analyzing the variation of the spacecraft rangingresult, the variation of the baseband equipment ranging result and the variation of the clock error before and after the ranging reference is changed to obtain a test result of the consistency of theranging result and the ranging reference change.

Description

technical field [0001] The invention belongs to the technical field of testing, and relates to a spacecraft system-level testing technology, in particular to a testing method for the consistency between a ranging result of a spacecraft and a variation of a ranging reference. Background technique [0002] The ranging result of the spacecraft will change after the ranging reference is adjusted. This change in the ranging result will have a significant impact on spacecraft applications that require extremely high ranging accuracy, such as navigation satellites. Therefore, the ranging The accuracy of the result changes in sync with the ranging reference for precise measurements. In the traditional processing method, it is assumed that the measured spacecraft is in a static state, and the one-way ranging result is a stable value, but the actual spacecraft is affected by orbital dynamics, and the one-way ranging result is a variable that changes with the orbit. The dynamic ranging...

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Problems solved by technology

[0003] In order to overcome the problems existing in the prior art, the inventors have carried out dedicated research and provided a test method for the consistency between the distance measurement result of the spacecraft and the distance measurement reference, which solves the problem that the measured spacecraft is affected by the orbital dynamics. The problem of inaccurate one-way ranging results, and the problem of introducing large system errors in the analysis of single ranging results in the prior art, thus completing the present invention

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