Autonomous target recognition and early warning method of space debris based on radar

Abstract

The invention relates to satellite autonomous target identification, and discloses a radar-based space debris autonomous target identification and early warning method, including steps 1, capturing the target and performing high-precision relative navigation measurement; 2, according to the spacecraft orbit and relative measurement data Calculate the orbit of space debris; 3. Recursively predict the orbit of space debris and calculate the minimum relative distance; 4. Release early warning information; 5. Measure and update. The invention realizes the autonomous identification of space debris by the satellite, and provides early warning to avoid the impact of the space debris, and can effectively avoid the damage caused by the space debris to the spacecraft.

Description

technical field The invention relates to a satellite autonomous target recognition method, in particular to a radar-based space debris autonomous target recognition and early warning method. Background technique With the continuous development of human spaceflight activities, the spatial density of space debris has posed a threat to the safety of spacecraft, especially in low-Earth orbit, where the density of debris is higher, and its number is still increasing rapidly. happens sometimes. The impact of space debris with large size and mass will change the surface properties of the spacecraft, damage or fail the components, and even make the spacecraft invalid. Therefore, if the spacecraft is in orbit for a long time, it is necessary to enhance the passive protection and active protection capabilities to effectively ensure the normal flight of the spacecraft or other spacecraft in orbit and the safety of the astronauts. LEO vehicles are facing the threat of space debris, e...

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Problems solved by technology

At present, there is no description or report on the application of similar technology to the present invention in space debris autonomous target recognition and early warning technology, and no similar information has been collected at home and abroad.