小天体激光地形测绘与导航一体化设计方法  

Integrated Design Method for Laser Topographic Mapping and Navigation of Small Celestial Bodies

作　　者：郭绍刚[1,2] 李林 朱飞虎 王立[1,2] 张运方[1,2] 赵琴 郑岩[1,2] 马月超[1,2] 张恒康[1,2] GUO Shaogang;LI Lin;ZHU Feihu;WANG Li;ZHANG Yunfang;ZHAO Qin;ZHENG Yan;MA Yuechao;ZHANG Hengkang(Space Optoelectronic Measurement and Perception Lab.,Beijing Institute of Control Engineering,Beijing 100190,China;China Academy of Space Technology,Beijing 100094,China)

机构地区：[1]北京控制工程研究所空间光电测量与感知实验室,北京100190 [2]中国空间技术研究院,北京100094

出　　处：《深空探测学报（中英文）》2022年第4期417-426,共10页Journal Of Deep Space Exploration

基　　金：国家航天重大工程专项;北京市科技新星计划(Z211100002121076);国家自然科学基金资助项目(51905034,52275083);国家重点研发计划项目(2021YFB3203100)。

摘　　要：针对小天体探测高帧率、高分辨率和高测距精度需求,深入分析了激光测绘导航方法现状,提出了一种混合固态激光三维地形测绘与导航一体化设计方法。通过单光子面阵探测器与532 nm光纤激光器实现高成像帧率、二维音圈电机快反镜多模式扫描实现大视场和亚像素成像分辨率,采用达曼光栅分束器实现激光光束高精度扩束与衍射。将其应用到小天体探测中,结果表明:激光测距精度优于3 cm(3σ),帧频4 Hz,成像分辨率达到1 100×1 100。所提出的方法可兼顾地形测绘与导航,实现多功能轻小型一体化设计,可极大地降低资源消耗,对中国小天体探测任务的实施具有良好的指导意义。Aiming at the requirements of high frame rate,high resolution and high ranging accuracy in small celestial body detection,the characteristics of laser detection technology were deeply analyzed,and a hybrid solid-state laser 3D terrain mapping and navigation integrated design method was proposed. High imaging frame rate was realized by single photon array device and532nm fiber laser,large field of view and sub-pixel resolution were realized by multi-mode scanning of two-dimensional voice coil motor fast mirror,and high-precision beam expansion and diffraction of laser beam were realized by Damman grating beam splitter.The results show that the laser ranging accuracy is better than 3 cm(3 sigma),the frame rate is 4 Hz,and the imaging resolution is as high as 1 100×1 100. The proposed method can give consideration to both topographic mapping and navigation,realize mutifunction,light and miniaturized design,and greatly reduce resource consumption. It has good guiding significance for the implementation of small celestial body exploration missions.

关 键 词：小天体 激光地形测绘与导航 混合固态 单光子 快反镜 

分 类 号：V448.224[航空宇航科学与技术—飞行器设计]