多脉冲变频激光雷达的设计与实现  

Design and implementation for multi pulsed and frequency conversion LiDAR

作　　者：邓全[1] 王治中[1] 张弛[1] 陈南亦 程占涛 DENG Quan;WANG Zhi-zhong;ZHANG Chi;CHEN Nan-yi;CHENG Zhan-tao(The 27th Research Institute of CETC,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,河南郑州450047

出　　处：《激光与红外》2023年第6期853-858,共6页Laser & Infrared

摘　　要：随着高超音速武器的使用,防御系统对激光雷达的远程探测能力提出了更高要求。多脉冲激光雷达是当前远程探测的主要手段。受激光器散热条件限制,目前多脉冲激光雷达最高工作频率为20 Hz,无法满足防御系统近程工作要求。本文结合激光雷达多脉冲、单脉冲测距技术的各自优势,提出了“多脉冲+单脉冲”自动变频复合测距的设计思路,并成功研制了一款多脉冲变频激光雷达。试验数据表明:该款激光雷达探测距离是单脉冲测距体制的142倍,取得了较好的试验结果。同时,通过自动变频控制措施,该款激光雷达能够满足防御系统近程高重频、高数据率(50 Hz)的要求。本文的研究成果对于推广多脉冲激光雷达具有较高的应用价值。With the use of hypersonic weapons,defense systems are placing greater demands on long range detection capabilities of LiDAR.Multi pulsed LiDAR is the main means of long range detection at present.Limited by the heat dissipation condition of the laser,the current maximum operating frequency of the multi pulse LiDAR is20 Hz,which cannot meet the short range operating requirements of the defense system.In this paper,combining the respective advantages of multi pulsed and single pulsed ranging technologies of LiDAR,the design idea of"multi pulsed+single pulsed"automatic frequency conversion compound ranging is put forward,and a multi pulsed frequency conversion LiDAR is successfully developed.The experimental data shows that the detection range of this LiDAR is 1.42 times higher than that of the single pulsed ranging system,achieving better test results.At the same time,with automatic frequency control measures,the LiDAR can meet the defense system′s short range requirements of high repetition frequency and high data rate(50 Hz)at short range.The research results of this paper are of high application value for the promotion of multi pulsed LiDAR.

关 键 词：激光雷达 多脉冲 变频 设计 实现 

分 类 号：TN958.98[电子电信—信号与信息处理] TP73[电子电信—信息与通信工程]