A screening method and system for space target collision warning combined with the cosine theorem

By introducing the cosine theorem for screening in space target collision early warning, only multiplication and addition/subtraction calculations are performed to eliminate targets with no collision risk, thus solving the problem of large computational load after screening and achieving efficient collision early warning processing.

CN122240966APending Publication Date: 2026-06-19ZHONGKE XINGTU MEASUREMENT & CONTROL TECH CO LTD
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
ZHONGKE XINGTU MEASUREMENT & CONTROL TECH CO LTD
Filing Date
2026-03-17
Publication Date
2026-06-19

AI Technical Summary

Technical Problem

Existing space target collision early warning methods still involve a huge amount of computation after screening, resulting in high computational costs.

Method used

By combining the law of cosines to screen spatial targets, the cosine and division operations are performed in advance through multiplication and addition/subtraction to eliminate targets that are unlikely to pose a collision risk, thus reducing the amount of subsequent calculations.

Benefits of technology

This reduces the number of target pairs required for subsequent calculations, improves the processing efficiency of collision warnings, reduces hardware size, and lowers computing costs.

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Abstract

This invention relates to the field of space target collision warning technology, specifically to a screening method and system for space target collision warning based on the law of cosines. The screening method includes: acquiring space targets; performing at least one screening to obtain screened space targets; wherein any one of the at least one screenings is a target relative position screening based on the law of cosines; and outputting the screened space targets. By adding target relative position screening based on the law of cosines, this invention reduces the number of target pairs used for subsequent calculations, thereby improving the processing efficiency of collision warning, reducing hardware size, and lowering computational costs.
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