激光成像雷达具有工作距离长、工作频率高、波束窄,距离和角度测量精度高,受光照条件影响小等诸多优势,在空间应用上的需求越来越迫切。主要介绍了国内外激光成像雷达在轨应用现状,并介绍了基于激光成像雷达的空间非合作目标相对导航的主要关键技术,包括应用激光成像雷达的相对位姿测量技术和相对导航滤波技术,最后给出了应用激光成像雷达的相对位姿测量仿真结果。仿真实验结果表明:基于激光成像雷达的非合作目标相对导航技术具有受空间环境影响小、测量精度高的优势,方案合理可行,满足空间非合作目标相对导航任务需求,可应用于近距离空间目标的在轨维护与服务和空间操控,为我国后续开展相关工程应用提供技术参考。
The imaging lidar has some advantages such as long detect distance, high frequency, narrow wave, high precision of distance and angle and less influence of illumination. So the imaging lidar is applied more and more in space. The application status of the imaging lidar was firstly introduced in space at home and abroad. Then the key technologies of relative navigation based on imaging lidar for space non-cooperative target were described. Finally, the simulation experiment of the spacecraft simulator was given. The simulation experiment result shows that the precision of relative navigation based on the imaging lidar for non-cooperation target is high. Then this relative navigation method is reasonable and feasible and meets the relative navigation mission requirements. So it could be applied to on-orbit spacecraft maintenance and serving, spatial manipulation of close distance space target, and so on. The research of this method provides the technology reference for the engineering implementation in future.