CAJ | 학술논문

由于传播环境的复杂性，入射到阵列的信号中有多径信号存在。在多径环境中，相干信源会造成波达方向（Direction of Arrival，DOA）估计的漏报。对面阵及相干信源进行数学建模，通过对接收信号协方差矩阵进行矩阵重构以降
유우전파배경적복잡성，입사도진렬적신호중유다경신호존재。재다경배경중，상간신원회조성파체방향（Direction of Arrival，DOA）고계적루보。대면진급상간신원진행수학건모，통과대접수신호협방차구진진행구진중구이강
Because of the complexity of propagation environment,there are multipath signals among the signals arriving the array. In the multipath environment,coherent signal source brings the pretermission of DOA estimation. Firstly,the mathematics models of uni-form plane array and coherent signal source are built,then the effect of coherent signal sources on the order of covariance matrix is reduced by re-constructing the covariance matrix. Finally,DOA of signal source is estimated by the 2D multiple signal classification (2D-MUSIC)algorithm. Based on the 2D-MUSIC algorithm,the modified 2D-MUSIC (M-2D-MUSIC)algorithm is proposed. The avail-ability and performance of the M-2D-MUSIC algorithm is verified by computer simulation.