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研究了一个以四象限光电探测器和快速剪切反射镜为主要功能块的光束精瞄准闭环控制系统。用一个频率和幅度均可调的扰动源模拟目标的漂移对该系统的性能进行了测试,结果表明在较低频率的扰动下该系统有良好的精跟踪能力。同时,结合一个望远镜跟踪系统对550m距离的一个动态合作目标进行了精跟踪实验,该系统在望远镜跟踪的基础上可以把跟踪精度提高约90％。
A beam aiming closed-loop control system with four quadrant photodetectors and fast shear mirrors as the main functional blocks was studied. The performance of this system was tested by simulating the target drift with a disturbance source of adjustable frequency and amplitude. The results show that the system has good tracking ability under low-frequency disturbance. At the same time, a tracking experiment was carried out on a dynamic cooperation target of 550m with a telescope tracking system. The system can improve the tracking accuracy by about 90% based on the telescope tracking.