Control Method of Spacecraft's Relative Orbit

Abstract

The invention relates to a spacecraft relative orbit control method which relates to a spacecraft close range relative orbit control method to achieve a hedgehop flying mode of a spacecraft, namely a tracking spacecraft runs according to the self orbit after entering the designated space range relevant to a target spacecraft, and only gesture control is required. The problems of complex calculation, poor pointing accuracy caused by pose orbit control coupling, easiness in identity exposure, difficulty in time maintaining and the like in the traditional methods of hovering, accompanying flying, diversion and the like are solved. The method includes the following steps that 1 the tracking spacecraft enters a sight angle range of the target spacecraft and enters the determined distance range between the tracking spacecraft and the target spacecraft; 2 the starting point, the end point and the initial orbit entering speed of an expected orbit of the target spacecraft are calculated, and the main wave direction is determined; 3 the tracking spacecraft enters the orbit with the calculated determined initial orbit entering speed from the starting point of the expected orbit and breaks away from the orbit at the end point of the expected orbit.

Description

technical field [0001] The invention relates to a short-distance relative orbit control method of a spacecraft. Background technique [0002] One of the important research hotspots in today's aerospace field is the short-distance relative orbital motion control of spacecraft. The relative orbital motion of spacecraft is to study the law of continuous motion of one spacecraft (tracking spacecraft) around another spacecraft (target spacecraft). It is often applied to space missions such as formation flight, on-orbit maintenance, rendezvous and docking, tracking and monitoring. At present, the most commonly used forms of relative orbital motion are hovering (the tracking spacecraft maintains the relative position of the target spacecraft), accompanying flight (the tracking spacecraft flies around a point near the target spacecraft in a closed trajectory) and flying around (accompanied flight A special case of , where the center of the closed trajectory is the target spacecraf...

AI Technical Summary

Problems solved by technology

[0004] The present invention provides a method for controlling the relative orbit of a spacecraft to realize the skimming mode of the spacecraft, that is, the tracking spacecraft operates according to its own orbit after entering a specified space range related to the target spacecraft, and only needs to perform attitude control; thereby Overcome the problems of complex calculations, low pointing accuracy due to attitude-orbit control coupling, easy exposure of identity, and difficulty in maintaining time in traditional methods such as hovering, accompanying flight, and flying around

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