Space target collision early warning method and system

Abstract

The invention relates to the technical field of space target collision early warning, and provides a space target collision early warning method and system, and the method comprises the steps: obtaining a spacecraft needing early warning and the TLE number of all space targets; the CPU initializes the SGP4 model, counts the number of all space targets and orbit time point information to obtain a forecast task amount, and copies the data of the SGP4 model, the number of TLEs, the orbit time point information and the orbit forecast task amount to a video memory; according to the thread count of the GPU, allocating the orbit forecasting task to each thread of the GPU for processing, and summarizing orbit forecasting results; the GPU determines a rendezvous event in which collision possibly exists between the spacecraft and the space target according to the orbit forecast result; allocating the rendezvous event task to each thread of the GPU for processing according to the thread count of the GPU; copying the rendezvous probability to a memory; and the CPU screens out a rendezvous event which is most likely to generate collision according to the rendezvous probability. According to the method and the system of the scheme, the space target collision early warning event can be quickly processed.

Description

technical field [0001] The invention relates to the technical field of space target collision early warning, in particular to a space target collision early warning method and system. Background technique [0002] With the continuous exploration of space by human beings, a large amount of space debris has been accumulated in the orbit around the earth. Space debris orbiting the earth at super-high speed is extremely destructive to orbiting spacecraft, especially for manned spacecraft, which is more likely to have catastrophic consequences. In order to protect the safety of spacecraft, it is necessary to carry out space debris collision risk assessment and calculation, and predict the time of dangerous orbital rendezvous that may occur in the future, so that measures can be taken in advance to avoid collision of spacecraft. [0003] As of November 2021, Space Track has provided more than 22,000 cataloged on-orbit space targets. Most of these cataloged targets are targets lar...

AI Technical Summary

Problems solved by technology

[0009] The purpose of the present invention is to provide a space object collision early warning method and system, which can overcome the low parallelism in the space object collision early warning problem that requires high computer performance and timeliness due to the limitation of CPU computing performance in the prior art , Insufficient bandwidth, high delay and other defects, reduce the cost of cluster parallel computing, and quickly process space target collision warning events

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