激光雷达合作目标设计及其在空间交会对接中的应用

Design of lidar cooperative target and its application to space rendezvous and docking

激光雷达合作目标是激光交会对接雷达测量系统重要组成部分。针对激光交会对接雷达系统测量需求,首次采用远近场双合作目标设计方式,实现对激光信号原路返回,用于目标飞行器在远场时快速搜索捕获,近场时精确测量。对于远场合作目标采用了多维阵列构型,通过仿真分析,在有效视场90°×105°范围内最小有效反射面积不低于100 cm2,保证了对激光信号反射能力和目标捕获能力。所设计的激光雷达合作目标满足了激光交会对接雷达系统应用要求。

Lidar cooperative target is one important part of lidar rendezvous and docking measuring system. According to the requirements of lidar rendezvous and docking measuring system, the optimal design for the structure of lidar cooperative targets to make laser signals return back along incoming path was performed by using the method of the far and near field cooperative targets in order to fast search for and capture to objective spacecraft in the far field and implement accurate measurement in the near field. For the far field cooperative target the multi-dimensional structure of reflector array were adopted and the minimum reflective area can be reached to more than 100 cm^2 within the effective field of view of 90°×105 to make sure of the ability of laser signal reflection and acquisition of objective spacecraft. The designed lidar cooperative targets in this paper meet the requirement of lidar rendezvous and docking measuring system.