线性调频连续波带通采样波束形成定位方法  

Target Localization Based on Band-pass-sampling Beam Forming of LFMCW

作　　者：黄辉[1] 黄峥[2] 任俊峰[2] 李楚宝[2] 黄涛[2] 

机构地区：[1]机电工程与控制国家级重点实验室,陕西西安710065 [2]西安机电信息研究所,陕西西安710065

出　　处：《探测与控制学报》2010年第5期50-54,共5页Journal of Detection & Control

摘　　要：针对线性调频连续波(LFMCW)仅能定距而无法测向的不足,以及对差频信号直接做波束形成带来的大运算量的问题,提出了一种带通采样波束形成定位方法,利用单通道差频的谐波信息进行定距,对多通道差频做带通采样进行波束形成实现测向。仿真结果表明:该方法有效可行,具有运算量小,定位分辨率高,抗干扰性强等优点。LFMCW can only be used for range location,but not for direction finding,and it will bring big amount of operations when beam forms directly with differential frequency signal.This paper put forward a localization method based on the technology of band-pass-sampling beam forming,which could get the range information by dealing with the single channel harmonic of differential frequency,and get the azimuth information through band-pass-sampling beam forming with the multi-channel＇ differential frequency.The computer simulation results showed that this system was effective and feasible,which had advantages of small amount of computing,high location resolution,strong anti-jamming performance and so on.

关 键 词：定位 线性调频连续波 波束形成 带通采样 

分 类 号：TN820.5[电子电信—信息与通信工程]