一种基于运动平台的单站无源定位算法研究与应用  

Analysis and Application on a Single Observer Passive Location Algorithm Based on Moving Platform

作　　者：马若飞[1] 李辰梓 王超[1] MA Ruofei;LI Chenzi;WANG Chao(Xi'an Electronic Engineering Research Institute,Xi'an 710100)

机构地区：[1]西安电子工程研究所,西安710100

出　　处：《火控雷达技术》2022年第4期42-46,共5页Fire Control Radar Technology

摘　　要：无源定位技术具备隐蔽性好、作用距离远等特点,是一种重要的侦察定位手段。由于来波方向参数(DOA)的截获计算相对容易实现,并且测量结果可靠性和可信度较高,因此本文采用基于运动平台的到达角度交叉算法进行距离的定位估计。通过对该算法进行信号建模,得到求解当前距离值需要的关键参数及其对应的数据来源,并分析推导距离估计算法。通过模型仿真与外场试验,验证了当来波方向的测角精度满足一定要求时,通过该定位算法估计的威胁辐射源的位置信息(距离)就会得到较好的精度指标。Passive location technology features with good concealment and long operation range,and is an important approach of reconnaissance and location.Because the interception and calculation of direction of arrival(DOA)is relatively easy to realize with high reliability,in this paper,the range estimation was realized by using the location algorithm of the direction finding cross based on moving platform.By signal modeling,the key parameters and the corresponding data sources were obtained to calculate the current distance value,and the corresponding distance estimation algorithm formulas were analyzed and deduced.Simulation and filed test results indicated that the location(distance)estimated by this algorithm can reach a higher accuracy if the measurement accuracy of arrival beam direction met certain requirements.

关 键 词：运动平台 单站无源定位 角度交叉 距离估计 

分 类 号：TN95[电子电信—信号与信息处理] TN974[电子电信—信息与通信工程]