一种点目标正弦动态观测的姿态导引算法
By designing an attitude guidance algorithm for sinusoidal dynamic observation motion, the problem of high target detection difficulty in spacecraft on-orbit observation was solved, achieving effective distinction between target and background and long-term stable tracking, thereby improving the observation stability and detection capability of spacecraft.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Patents(China)
- Current Assignee / Owner
- SHANGHAI AEROSPACE CONTROL TECH INST
- Filing Date
- 2024-03-15
- Publication Date
- 2026-07-17
AI Technical Summary
In existing technologies, when spacecraft observe targets in orbit, the static staring method results in high background noise in the imaging, time-varying noise characteristics, high difficulty in target detection, poor detection stability, and difficulty in long-term stable tracking.
An attitude guidance algorithm based on sinusoidal dynamic observation of point targets is adopted. By calculating the star-eye vector and attitude guidance quaternion, the radius and period of sinusoidal dynamic observation motion are designed to achieve smooth circular motion of the target within the observation field of view, thus distinguishing the target from the short-term background.
It enhances the onboard target detection and long-term tracking capabilities, effectively distinguishes targets from short-term backgrounds, and improves the spacecraft's stable tracking performance.
Smart Images
Figure CN118597441B_ABST