Satellite-accurate stand-alone measurement method

Abstract

The invention provides a satellite precision single-machine measurement method. The satellite precision single-machine measurement method comprises the following steps: step 1, arranging a set of immobilized theodolite to align to a reference surface of a main standard prism; determining the theodolite as a main theodolite, so as to form a main theodolite measurement reference coordinate system; step 2, measuring another reference surface of the main theodolite by utilizing one set of auxiliary theodolite; reflecting a direction vector of the prism surface to the auxiliary theodolite; aligning the theodolite with the main theodolite to measure a relative offset angle and the like. By adopting the satellite precision single-machine measurement method, the requirements on a satellite parking time and a platform of a satellite parking frame are reduced, and the precision measurement working efficiency is effectively improved, so that the time for type development is saved; the space precision measurement of single machines including a star sensor and the like and the installation precision of the single machines are ensured, and a good foundation is laid for in-orbit high precision attitude measurement; the single-machine measurement method is referred to and popularized by other types.

Description

technical field [0001] The invention relates to the technical field of precision measurement in a satellite assembly process, in particular to a stand-alone satellite precision measurement method. Background technique [0002] With the high-resolution requirements of satellites, the pointing accuracy requirements of the stand-alone satellite attitude determination have also been greatly improved, which has brought considerable challenges to engineering realization. The accuracy index of the precision measurement data has also been improved to 8", which also makes the measurement system error of the traditional method have to be paid attention to. The traditional satellite’s precise measurement idea is to measure the deviation of the installation of the precision stand-alone prism relative to the earth coordinate system. In order to ensure that the satellite coordinate system and the earth coordinate system The parallel relationship between satellites is strictly required for...

AI Technical Summary

Problems solved by technology

[0003] At the same time, for star sensors and other stand-alone machines, due to the mutual field of view avoidance requirements, it is easy to form a three-dimensional space angle with the main datum in the entire star configuration layout. The narrow gap between the air-floating platforms cannot complete the measurement work, and cannot obtain the changes in different states of the star-sensitive head data

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