基于单轴气浮台的空间跟瞄地面试验的设计与实现

为验证通过调整卫星本体姿态而实现精确跟瞄的可行性,设计出基于单轴气浮转台,以反作用轮和精密轮为执行机构,CCD摄像机与DSP图像处理器为光学系统,以PID算法为跟踪控制器算法的跟瞄地面实验系统,提出了跟踪控制方案;并以一个典型工况为例,测试出了跟瞄实验系统的精度;实验结果表明,当摄像机距离目标2.5m,而目标视线以1mrad/s的速度转动时,跟瞄实验系统的跟踪误差小于0.051mrad,从而验证了通过调整卫星本体姿态实现精跟瞄的可行性。

Design and Implementation of Tracking and Pointing Ground Experiment based on Single Axis Air-bearing Table

To validating the possibility of precise tracking and pointing through adjusting satellite's gesture,a ground experiment system of tracking and pointing was designed.Its actor consists of reaction wheel and high precise wheel,and optical system consists of CCD vidicon and image processor based on DSP.Its control algorithm is based on PID.A tracking control scheme was also proposed.It analyses a model in which the vidicon was 2.5m apart from the target,and the angle velocity of line of sight was constantly 1...