Optical axis orientation calibrating method of star sensor probe assembly

Abstract

The invention discloses an optical axis orientation calibrating method of a star sensor probe assembly, which comprises the steps of: before the star sensor probe assembly is assembled and mounted, respectively calibrating three star sensors of the star sensor probe assembly by using a photographic surveying method, so as to obtain a conversion relation between each star sensor coordinate system and a corresponding star sensor standard lens; establishing a theodolite surveying system at least comprising six theodolites: at first, establishing the theodolite surveying system by mutually pointing of any two of the theodolites, secondly, collimating the standard lens of one of the star sensors by using each two theodolites to obtain a relation of the three star sensor standard lenses relative to the star sensor coordinate system, and finally, obtaining a relation among the three star sensor standard lenses according to the relation of the three star sensor standard lenses relative to the star sensor coordinate system; and finally, obtaining the relation among the three star sensor coordinate systems according to the relation among the three star sensor standard lenses, so as to calibrate an optical axis orientation of the star sensor probe assembly.

Description

technical field [0001] The invention relates to a method for calibrating the optical axis pointing of a star sensor probe, in particular to a method for calibrating the optical axis pointing of a star sensor probe assembly, which belongs to the field of visual measurement. Background technique [0002] The star sensor assembly is an integrated structure that uses a three-probe high-precision star sensor and a star sensor bracket with a complex configuration. This configuration reduces the transfer error between the attitude of the satellite using the star sensor and the attitude of the payload. , improving the high stability of the azimuth elements of the satellite in orbit. According to the measurement plan, the measurement of the relationship between the star-sensitive reference mirrors of the star sensor assembly needs to establish the conversion relationship between the mechanical coordinate system and the platform cube mirror through measurement, and the relationship be...

AI Technical Summary

Problems solved by technology

Since the determination of the three-axis azimuth relationship between the coordinate systems of the three cube mirrors requires high precision, the original equipment and software cannot meet the test accuracy requirements, and the test method needs to be improved to achieve accurate measurement of the relationship between the cube mirrors

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