Space fragment removing system and method and space fragment removing task planning method

Abstract

The invention discloses a space fragment removing system and method and a space fragment removing task planning method. The space fragment removing method comprises the steps that a task satellite carries a plurality of pushing off-track devices to the positions of target fragments; the task satellite releases one pushing off-track device, and the pushing off-track device pushes the target fragments to a grave track; and the task satellite maneuvers to the next target fragment position, and the above operation is repeatedly conducted. The space fragment removing task planning method comprisesthe steps that an immune genetic algorithm is adopted for top-layer optimization, and an optimal task sequence is obtained; and a particle swarm optimization algorithm is adopted for conducting bottom-layer optimization, and an optimal transferring track is obtained. According to the space fragment removing system and method and the space fragment removing task planning method, the task satelliteonly needs to maneuver between the multiple to-be-removed fragments, the optimal task sequence through which the fuel consumption of the whole task is minimum and the number of carried optimal off-track pushing devices can be obtained, the fuel consumption in the fragment removing process is low, and the efficiency is high.

Description

technical field [0001] The invention relates to the technical field of aerospace safety, in particular to a space debris removal system and method and a mission planning method thereof. Background technique [0002] As human space activities become more and more frequent, space debris is constantly produced, which has become the main source of space pollution. According to the report of the Space Surveillance Network (SSN), as of 2018, there have been more than 18,000 space objects, 90% of which are space debris. Geosynchronous Orbit (GEO) is an important orbital resource. However, a large amount of space debris occupies the GEO orbit and threatens the safety of spacecraft in orbit. In recent years, it has been proposed that at least 5 space debris should be actively removed every year to ensure the stability of the space environment. [0003] In the prior art, space debris is generally cleared in the following way: the mission satellite maneuvers to the space debris, cap...

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Problems solved by technology

[0004] The inventors found that the existing technology has at least the following problems: when the mission satellite clears multiple space debris, it needs to repeatedly go back and forth between the geosynchronous orbit and the graveyard orbit, which requires a large amount of maneuvering, consumes a lot of fuel, and takes a long time , low work efficiency

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