以湖面信标光为真实移动跟踪目标,设计了二维粗跟踪演示系统,验证空间光通信捕获、跟踪和对准(ATP)系统对机动目标的跟踪性能。采用双DSP和两轴精密转台搭建了粗跟踪的硬件平台。采用直方图阈值分割法将信标光从复杂的湖面背景中分离出来。采用预测自校正控制算法设计粗跟踪系统的控制器,具有较好的鲁棒性。进行了针对湖面移动信标光的二维跟踪实验,实验结果表明,粗跟踪系统有较好的跟踪精度,跟踪精度与跟踪距离远近关系不大,满足空间光通信跟踪系统的要求。 With the lake beacon light as the real moving target, a two-dimensional rough tracking demonstration system was designed to verify the tracking performance of the space optical communication capture, tracking and alignment (ATP) system on the maneuvering target. Dual-DSP and two-axis precision turntable built a rough tracking hardware platform. Histogram thresholding method is used to separate beacon light from complex lake background. Predictive self-tuning control algorithm designed coarse tracking system controller, has good robustness. The two-dimensional tracking experiments on lake mobile beacon light are carried out. The experimental results show that the coarse tracking system has good tracking accuracy, and the tracking accuracy has little to do with the tracking distance to meet the requirements of the space optical communication tracking system.