【摘要】 为了实现对被测目标的准确定位,新型无源探测系统往往需要二维方向信息及比较理想的信道特性。文中提出了一种正交阵列结构并利用了基于 MUSIC 算法的单信号源校正方法,同时实现了二维 DOA 估计及对信道失配的校正,大大改善了 DOA 的估计性能。经计算机仿真,证明了该方法的有效性。更多还原

【Abstract】 In order to realize precise location of detected object,the new passive detecting system usually needs 2-D ori- entation information and ideal channel characteristic.A vertical array structure is put forward and a calibration method with single known-direction source is used in this paper.Both 2-D estimation and calibration of channel mismatching are realized,and estimation performance is greatly improved.Its validity is confirmed by computer simulation.更多还原