A cooperative target marker for lunar orbital rendezvous and docking ultra-close distance measurement

Abstract

The invention relates to a cooperative target marker for super-close-distance measurement for rendezvous and docking of lunar orbits and discloses a cooperative target design based on uniform backward reflective marks. The cooperative target marker comprises six reflecting marks which are mounted on a disc-shaped bracket according to a designed space geometry topological configuration, wherein each reflecting mark comprises a glass bead panel, a narrow-band pass filter, anti-radiation glass and a shell. The cooperative target marker has the advantages of high reflection efficiency, good reflecting uniformity, high light energy stability, strong stray light interference resistance, small volume and lightness. According to the cooperative target marker, the deficiencies that the measurement accuracy and reliability of a system are decreased because the reflection efficiency of a conventional cooperative target is low under a super-close-distance condition, and the reflecting uniformity is decreased are solved; and the cooperative target marker is suitable for super-close-distance high-precision measurement occasions during the rendezvous and the docking.

Description

technical field [0001] The invention relates to a cooperative target marker for lunar orbit rendezvous and docking ultra-short distance measurement, which is applied to the ultra-short distance cooperative target design for space rendezvous and docking visual measurement. Background technique [0002] Lunar orbital rendezvous and docking is a key technical link in the implementation of lunar exploration projects. After the lunar probe completes lunar surface inspections, lunar exploration, and lunar soil sampling on the lunar surface, it will take off from the lunar surface, ascend to orbit around the moon, and rendezvous and dock with the lunar return vehicle residing in this orbit. Return to Earth. When the distance between the two aircraft is from 150 meters to the completion of docking, the rendezvous and docking visual measurement system is the only device that can simultaneously provide position and attitude six-degree-of-freedom measurement information, and is the ke...

AI Technical Summary

Problems solved by technology

[0012] The technical problem solved by the present invention is: to overcome the deficiencies of the prior art, and propose a cooperative target design for high-precision ultra-close-distance measurement of lunar orbit rendezvous and docking, which effectively solves the problems of light-return uniformity, light-return efficiency, Miniaturization and visual fault tolerance solve the problem of low measurement accuracy caused by poor light return uniformity and low light return efficiency of the rendezvous and docking visual measurement system at ultra-close distances, as well as the design requirements for ultra-short-distance micro-miniature cooperation targets

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