An Adaptive Laser Derotation Method for Space Debris

Abstract

The invention discloses a self-adaptive laser derotation method for space debris. The self-adaptive laser derotation method for the space debris is achieved on a self-adaptive laser derotation system. The self-adaptive laser derotation method for the space debris comprises seven steps of debris tracking, real-time focusing, debris slow-down and derotation, translation slow-down real-time evaluation, self-adaptive translation slow-down, derotation real-time evaluation and self-adaptive derotation. The debris tracking realizes debris distribution analysis and determines an interesting debris target; on the basis of automatic focusing, the debris slow-down and derotation are carried out; on the basis of `the translation slow-down real-time evaluation, the self-adaptive translation slow-down is carried out; and on the basis of the derotation real-time evaluation, the self-adaptive derotation is carried out. The self-adaptive laser derotation method for the space debris has the advantages that the space debris distribution is analyzed in real time by using an image tracking sub system and the interesting debris target is selected; and by using a variable power repetition rate pulsed LID laser, a laser distance and velocity measuring sub system and an LID effect monitoring sub system, the self-adaptive debris slow-down and derotation are achieved to achieve rapid debris derotation and improve the debris capturing ability.

Description

technical field [0001] The invention relates to a laser derotation system and method, in particular to a target derotation method using composite laser and imaging means, which is suitable for derotation of low earth orbit debris and belongs to the field of optoelectronic technology. Background technique [0002] The collection of invalid objects in Earth orbit is called space debris (Space debris), also known as orbital debris, space junk or space waste. There are 1,500 large fragments (each with a mass greater than 100 kilograms) in the Low Earth orbit (LEO for short), whose total mass accounts for 98% of the total mass of the entire low-orbit fragments (1,900 kg). [0003] Every satellite launch, space exploration and manned spaceflight may produce residual space debris. Any collision between two space objects of a certain size will produce new debris. Especially when a large collision (such as a space station and a failed satellite) occurs, the large amount of debris g...

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Problems solved by technology

However, a mature LID racemization system and method have not yet been introduced

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