基于多传感器信息融合的激光定位与跟踪

摘要

为了更精确实现远距离激光定位与跟踪,将十二个PIN硅光电二极管阵列探测器和一个带有光学系统的精密四象限探测器立体组合成独特的多传感器排列结构,并将空间测角基本理论与基于Bayesian决策原理的多传感器信息融合算法有机结合,实现自由空间中作用距离可达十千米的激光的粗精定位,利用激光的定位信息控制三维高精度转台的旋转实现精密跟踪.实践证明,在粗定位跟踪的基础上,精定位跟踪精度小于三个毫弧度.%In order to achieve more precise orientation and tracking for long-distance laser, twelve PIN silicon photodiode chips detector and a precision four-quadrant photo-detector with optical system compose novel multi-sensors dimensional configuration. The application of space angle-measuring basic theory and multi-sensor information fusion algorithm based on Bayes principle realize rough and precise location in 10 km distance in free space and realize precise tracking by controlling three-dimensional high-precision rotary table using orientation information. The experiment results show that baed on rough location, it is proved that precise location angle accuracy is less than 3mrad.