激光雷达超远距离测距技术  

Ultra-long Distance Ranging Technology on LiDAR

作　　者：魏龙超[1] 王鹏宇[1] WEI Longchao;WANG Pengyu(The 27th Research Institute of China Electronics Technology Group Corporation,Zhengzhou 450047,China)

机构地区：[1]中国电子科技集团公司第二十七研究所,郑州450047

出　　处：《宇航计测技术》2024年第3期75-81,共7页Journal of Astronautic Metrology and Measurement

摘　　要：针对超远距离多功能交会对接激光雷达需求,开展基于非相干测距技术的远距离激光测距通信一体化模块研制,在不改变原有雷达主机架构和信号体制下,实现对远距离高动态合作目标的通信测距功能。推导出测距原理,对动态、时钟性能等因素产生的测距误差进行理论分析,给出速度、时钟性能对测距误差的影响公式。得出在高动态环境下,相对速度与测距周期、双方钟差共同作用产生测距系统误差,且速度越大系统误差越大的结论。设计测距通信一体化演示验证平台,完成测距通信算法的软硬件评估,实测结果与理论推导相符,为后续新体制激光雷达原理样机研制奠定技术基础。For ultra-long distance ranging RVD Light Detection and Ranging(LiDAR)requirement,the integrated distance measurement and communication module have been developed.Without changing the original radar architecture and signal structure.The distance measurement and communication function has been realized for long-distance and high dynamic cooperative targets.The principle of distance measurement has been derived.Ranging errors caused by dynamic and clock performance factors has been analyzed.The formula for the influence of speed and clock performance on ranging error has been provided.It is concluded that in high dynamic environments,the combined effect of relative velocity,ranging period,and clock bias on both sides results in ranging system errors.A demonstration verification platform has been built to complete algorithm evaluation and principle demonstration.

关 键 词：激光测距通信 激光雷达 双向单程测距 

分 类 号：TN249[电子电信—物理电子学] TN953.2[航空宇航科学与技术—人机与环境工程] V19