圆形传感器阵列运动多目标2D-DOA估计  

2D-DOA Estimation of Moving-Target Based on Round Sensor Array

作　　者：曹国侯[1] 宁强[1] 

机构地区：[1]成都军区工程科研设计所,昆明650222

出　　处：《兵器装备工程学报》2016年第1期78-81,共4页Journal of Ordnance Equipment Engineering

摘　　要：针对雷场低空运动多目标方向角估计中,现有算法需要设置立体传感器阵列,且估计精度还不能满足实战化要求等问题,提出了基于圆形传感器阵列的运动多目标二维波达方向估计方法;该方法用向量来表示方向角,采用独立分量分析算法,并结合波束形成算法,实现运动多目标方向角估计;场地实验表明:该方法能够准确地识别运动多目标的数目,其二维波达方向估计精度比基于小波加权的相关时延算法要好,为提高雷场运动多目标识别率和定位精度提供了新的技术途径。For moving multl-target direction angle estimation of the minefield, the exiting algorithms need to set up the three-dimensional sensor array, and the resolution is not good enough. A new method was proposed to estimate the 2D-DOA of the moving muhi-target based on the round sensor array. The method combined with the independent component analysis algorithm and the beam-forming algorithm, using vector to represent the direction angle, which can estimate the 2D-DOA of the targets. The field experiments show that the method plays better than the cross correlation algorithm of 2D-DOA estimation, and provides a new way for improving the minefield movement targets identification and positioning precision.

关 键 词：DOA估计 运动多目标 独立分量分析 圆型阵列 

分 类 号：TN957.51[电子电信—信号与信息处理]