Spaceborne laser fully autonomous pointing control method, electronic equipment and storage medium

By autonomously acquiring ground information through the onboard system, performing coarse and high-precision orbit extrapolation, and autonomously controlling the laser and camera payloads, fully autonomous onboard laser pointing control is achieved. This solves the problems of high dependence on the ground and low efficiency in traditional methods, and improves pointing accuracy and mission success rate.

CN121225007BActive Publication Date: 2026-06-30BEIJING INST OF CONTROL ENG
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Patents(China)
Current Assignee / Owner
BEIJING INST OF CONTROL ENG
Filing Date
2025-09-29
Publication Date
2026-06-30

AI Technical Summary

Technical Problem

Traditional spaceborne laser pointing control methods require the deployment of laser receivers on the ground, which consumes a lot of manpower, economic and time costs. The tasks are complex, the information transmission links are long, and the calculation accuracy and efficiency are low, making it impossible to achieve highly autonomous and high-precision pointing control.

Method used

The onboard system autonomously acquires information from fixed ground calibration sites, autonomously calculates laser pointing tasks, including coarse and high-precision orbit extrapolation, autonomously notifies ground targets of time, autonomously controls laser and camera payloads, and autonomously performs attitude maneuvers and pointing control, achieving fully autonomous mission planning and execution.

Benefits of technology

It significantly enhances satellite autonomy, simplifies ground workflows, improves work efficiency and pointing accuracy, reduces orbit extrapolation errors, increases mission success rate, and has versatility.

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Abstract

This invention relates to the field of satellite attitude control technology, and particularly to a fully autonomous pointing control method, electronic equipment, and storage medium for spaceborne lasers. First, the location of the fixed ground calibration field, the laser emission phase, and pointing information are pre-set on the satellite. The onboard system autonomously performs long-term orbit extrapolation to determine whether the satellite is about to pass the calibration field and calculates a rough target time T* and its day / night status, autonomously notifying the ground user. Based on T*, the satellite autonomously controls the laser and camera payload for operational preparation. Approaching T*, the onboard system, based on high-precision navigation data, iteratively extrapolates and selects the optimal time T1 for passing the calibration field and the target attitude. Finally, the satellite autonomously maneuvers to the target attitude, precisely pointing the laser at the calibration field at time T1, and autonomously returns after mission completion. This method achieves full-process onboard autonomy from mission planning to execution, significantly improving satellite autonomy, operational efficiency, and pointing accuracy.
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Citation Information

Patent Citations

  • Satellite-borne laser semi-autonomous pointing control method, electronic equipment and storage medium

    CN121225008A