Satellite rolling attitude planning method considering thermal control and measurement and control constraints based on sight pointing

Abstract

The invention provides a satellite rolling attitude planning method considering thermal control and measurement and control constraints based on sight pointing. The satellite rolling attitude planningmethod comprises the steps of (1) injecting task satellite position information and target satellite pose measurement information into a ground measurement and control station; (2) resolving a sunlight unit vector under an orbital coordinate system of the task satellite; (3) resolving a position vector of the measurement and control station under a J2000 geocentric inertial system; (4) determining thermal control and measurement and control constraints; (5) determining a fly-around rotating shaft and a maximum fly-around angle; (6) obtaining a fly-around angle value set; (7) obtaining a rolling angle feasible region meeting the thermal control constraint, a rolling angle feasible region meeting the measurement and control constraint and a rolling angle feasible region simultaneously meeting the thermal control and measurement and control constraints for the fly-around angle; (8) obtaining a rolling angle feasible region meeting the thermal control constraint, a rolling angle feasibleregion meeting the measurement and control constraint and a rolling angle feasible region simultaneously meeting the thermal control and measurement and control constraints in the whole fly-around process; and (9) generating a rolling angle expected value sequence of the task satellite, and injecting the rolling angle expected value sequence into the satellite.

Description

Technical field [0001] The invention relates to the field of space equipment manipulation, in particular to a satellite rolling attitude planning method based on the direction of the line of sight and considering the thermal control measurement and control constraints. Background technique [0002] Space manipulation technology is currently a hot research topic in the aerospace field. In-orbit maintenance of faulty satellites and the capture and removal of abandoned satellites are all space manipulation technologies. Before repairing the malfunctioning satellite or capturing and removing the obsolete satellite, the mission satellite needs to orbit from the initial position to a specific azimuth of the target star, during which the on-board measuring device and control equipment point to the target. [0003] The malfunctioning satellite still has a certain ability to control the attitude and orbit, and its attitude is relatively stable; the abandoned satellite is out of control, but...

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