An Attitude Planning Method for Establishing Laser Links After Spacecraft Entering Orbit

Abstract

The invention discloses an attitude planning method for establishing a laser link with each other after the spacecraft enters orbit. The method includes at least two spacecraft. The method for establishing a laser link between the two spacecraft includes the following steps: Step S1: determining a second spacecraft All possible positions of the spacecraft, that is, the uncertain area, and calculate the half cone angle of the uncertain area. The first spacecraft performs a square helical motion, and the second spacecraft emits the first laser to the first spacecraft. The laser beam of the laser transmitter A is captured, and the target attitude angle of the second spacecraft is adjusted so that the emission beam of the second laser transmitter A coincides with the connection line between the first spacecraft and the second spacecraft; the invention determines the spacecraft The calculation method of the target attitude angle and the included angle of the laser transmitter is presented, and the planning method of the spacecraft target attitude angle and the included angle of the laser transmitter is given, which can significantly improve the pointing accuracy of the spacecraft laser transmitter.

Description

technical field [0001] The invention belongs to the field of aerospace technology, and in particular relates to an attitude planning method for mutually establishing laser links after spacecraft enter orbit. Background technique [0002] In the space Samsung system, after three spacecraft are in orbit, each spacecraft in the Samsung formation needs to communicate with the other two spacecraft. In order to realize the large-capacity, high-speed, and high-concealment transmission of information between spacecraft, a laser link can be established between satellite formations, and the precise formation of the three spacecraft and the precise pointing of the laser transmitter are the basis for establishing a laser link. and guarantee. [0003] Due to the influence of factors such as the long distance between spacecraft and various perturbation forces in the space environment, the acquisition of laser signals between spacecraft and the attitude planning based on the captured sign...

AI Technical Summary

Problems solved by technology

[0005] The purpose of the present invention is to provide an attitude planning method for mutual establishment of laser links after spacecraft enter orbit, to solve the problem that laser transmitters cannot be accurately pointed due to navigation errors, which in turn leads to reduced information transmission efficiency of laser communication links question

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