摘要
距离测量的本质就是测量信号往返于雷达与目标之间的时延,因而时延测量的精度将直接决定目标测距的质量。本文基于互相关时延估计的方法原理和信号模型,研究了匹配滤波器的基本原理,将匹配滤波器引入到多目标测距中,提高测距性能。通过仿真分析,说明了基于互相关的多目标测距方法的可行性。
Ranging is one of the most important basic functions of radar,and the essence of range measurement is to measure the signal time delay between radar and the target,so the accuracy of time delay measurement will directly determine the quality of target ranging.The time delay estimation method based on cross-correlation is an important time delay estimation algorithm,especially playing an important role in multi-target ranging.This paper first introduces the research background,and then presents the method based on cross-correlation time delay estimation principle and signal model.At the same time,the basic principle of matched filter is studied,and the matched filter is introduced into the multi-objective range,which improves the performance of ranging.Finally,through the simulation analysis,this paper illustrates the feasibility of multi-object ranging method based on cross-correlation.
作者
周扬
焦义文
陈雨迪
ZHOU Yang;JIAO Yiwen;CHEN Yudi(Department of Electronic and Optical Engineering,Space Engineering University,Beijing 101400,China)
出处
《兵器装备工程学报》
CAS
CSCD
北大核心
2022年第S02期337-342,共6页
Journal of Ordnance Equipment Engineering
关键词
测距
时延估计
匹配滤波器
多目标测距
ranging
time delay estimation
matched filter
multiple target ranging
