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Cooperative target marker for super-close-distance measurement for rendezvous and docking of lunar orbits

An orbital intersection and ultra-close-range technology, applied in the directions of measuring point marking, integrated navigator, etc., can solve the problems of poor return light uniformity, low return light efficiency, low measurement accuracy, etc., to achieve low cost, easy processing and production, reflection high rate effect

Active Publication Date: 2017-05-31
BEIJING INST OF CONTROL ENG
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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

Method used

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  • Cooperative target marker for super-close-distance measurement for rendezvous and docking of lunar orbits
  • Cooperative target marker for super-close-distance measurement for rendezvous and docking of lunar orbits
  • Cooperative target marker for super-close-distance measurement for rendezvous and docking of lunar orbits

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Embodiment Construction

[0024] The rendezvous and docking measurement camera uses the illumination source to illuminate the cooperation target, and the cooperation target reflects the energy of the illumination beam back to the camera according to the original path for imaging and image processing to complete the relative position and attitude measurement. Traditional cooperation targets are realized based on corner reflectors or cat-eye lenses. For ultra-short-distance measurement applications, there are two shortcomings: First, the energy of the returned light is greatly affected by the incident angle, and the efficiency of the returned light decreases as the incident angle increases. Fast, and the uniformity of light return at different angles is low; secondly, due to the limitation of the working principle of the corner reflector and the cat's eye lens, the size of the parts cannot be made too small, so it is impossible to realize the micro cooperation target for ultra-short distance. The above tw...

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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...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01C21/24G01C15/02
CPCG01C15/02G01C21/24
Inventor 赵春晖郑岩史广青刘启海华宝成龚德铸郭绍刚刘鲁
Owner BEIJING INST OF CONTROL ENG
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