基于耀光干扰规避轻量化计算的机动方法和装置

By establishing spherical triangulation in the satellite's body coordinate system and using simple calculation formulas to determine glare interference areas and avoid glare, the problem of optical imaging saturation caused by glare interference from high-orbit satellites over the sea surface was solved, achieving lightweight computation and efficient maneuvering strategies.

CN121044076BActive Publication Date: 2026-07-17BEIJING INST OF CONTROL ENG

Patent Information

Authority / Receiving Office
CN · China
Patent Type
Patents(China)
Current Assignee / Owner
BEIJING INST OF CONTROL ENG
Filing Date
2025-09-05
Publication Date
2026-07-17

AI Technical Summary

Technical Problem

In existing technologies, the glare phenomenon of high-orbit surveillance satellites on the sea surface when observing targets in specific areas leads to saturation of optical imaging information, which is computationally complex and consumes a large amount of onboard memory and time resources.

Method used

Two spherical triangles are established in the satellite's coordinate system with the satellite's center of mass as the center. Using the solar vector, the observation direction, and the geocentric vector pointing to the target point on the Earth's surface, the glare interference zone is determined by a simple spherical triangle calculation formula, and the yaw offset angle is calculated to avoid glare interference.

Benefits of technology

The calculation process for glare interference has been simplified, reducing the computational load and memory usage to less than 1/10 of the original method, effectively preventing glare interference with the detection target.

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Abstract

本发明公开了一种基于耀光干扰规避轻量化计算的机动方法和装置,属于载荷机动规划领域。方法包括:基于太阳矢量、卫星的观测方向和地心指向地表目标点矢量,在卫星本体坐标系下建立以卫星质心为球心的第一球面三角;在由太阳矢量和地心指向地表目标点矢量构成的平面内,以地心指向地表目标点矢量为平分线,构造与太阳矢量对称的光反射矢量,以在卫星本体坐标系下建立第二球面三角;基于第一球面三角、第二球面三角以及水的布儒斯特角,判断卫星此时照相是否处于耀光干扰区;基于判断结果,计算用以叠加至原本偏航角的偏航偏置角,以规避耀光干扰。本方案可以大大简化计算过程,计算量和内存占用在原有方法的1 / 10以下。
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