圆形传感器阵列运动多目标2D-DOA 估计

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 multi-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 multi-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.