基于激光雷达相干探测技术的实验研究  

Experimental Study on Coherent Detection Technology in Laser Radar

作　　者：孙洋[1] 杨国栋[1] 张骏[2] 

机构地区：[1]海军704厂,青岛266109 [2]烟台大学光电信息学院,烟台264005

出　　处：《舰船电子工程》2010年第10期59-61,共3页Ship Electronic Engineering

摘　　要：基于激光雷达相干探测技术建立了探测转动目标(如舰载直升机)的数学模型,展开了应用激光相干技术探测运动目标的实验研究,并实现了目标运动特征的提取。实验对目标仅做转动运动和转动加平动的复合运动两种情况进行了实验对比,然后对目标的转动结构部分(如舰载直升机的旋转叶片)的不同运动状态进行了实验研究,采用时频分析方法提取出目标运动特征,成功估计出了运动参数,为目标识别和运动特征的探测提供了重要的信息。A mathematical model on detecting rotation target is presented,and it is based on laser coherent detection technology.Corresponding experimental study is developed,and the dynamic information in a target is acquired effectively.In the experiment,several different motion conditions in the rotation target are discussed.In the final data processing the time-frequency analysis are utilized to analyze the signature characteristic,and then the features in several group of experiments are acquired and the motion parameters are estimated successfully.The experiment is effective and feasible in detection on the dynamic information in a target,and that may provide further information for target detection,classification,and recognition.

关 键 词：激光雷达 相干探测 转动目标 时频分析 

分 类 号：TN958.98[电子电信—信号与信息处理]