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为了实现对机载移动目标的快速捕获和粗跟踪瞄准,设计了粗跟踪演示系统,完成了外场飞行实验的初步验证。本文系统利用GPS数据完成对目标的捕获,通过对姿态数据的校正,方位误差降到0.60°(1σ),俯仰误差降到0.40°(1σ),有效缩小了不确定区域;系统还对跟踪算法进行了优化改进,利用分段式函数等效非线性调整函数,有效解决动态目标跟踪时快速调整和超调之间的矛盾。飞行实验表明,本文的粗跟踪演示系统的捕获时间优于10s,粗跟踪精度优于480μrad,为精跟踪子系统实现最终的目标精确跟踪瞄准提供了有利条件,实验结果验证了该系统用于激光通信链路快速建立的可行性。
In order to achieve the rapid capture and rough tracking of airborne moving targets, a coarse tracking demonstration system was designed and the preliminary verification of the flight field experiment was completed. In this paper, the system uses GPS data to capture the target. By correcting the attitude data, the azimuth error is reduced to 0.60 ° (1σ) and the pitch error is reduced to 0.40 ° (1σ), which effectively narrows the uncertainty area. The system also analyzes the tracking algorithm The optimization and improvement are carried out. The equivalent non-linear adjustment function of the piecewise function is used to effectively resolve the conflict between rapid adjustment and overshooting when tracking dynamic targets. The flight experiments show that the acquisition time of the coarse tracking demonstration system in this paper is better than 10s and the coarse tracking accuracy is better than 480μrad, which provides favorable conditions for the precision tracking target of the precision tracking subsystem. The experimental results show that the laser tracking system Feasibility of rapid establishment of communication links.