关键词: 阵列信号处理, 面阵, 二维DOA估计, 传播算子, 自动配对

Abstract: The problem of two-dimensional（2-D） Direction Of Arrival（DOA） is discussed for the planar array, and an algorithm using Propagator Method（PM） is proposed. The method constructs a new data matrix with correlation matrices of four sub-arrays in the planar array. Eigen-decomposition of the new data matrix is replaced by a linear operator to get the rotational invariance matrix, and then the estimation of azimuth and elevation are calculated. DOA estimation performance of the new method is better than the ESPRIT algorithm. Computational complexity is reduced, the utilization of receiving data and anti-interference ability is higher. In addition, the proposed algorithm can obtain automatically-paired 2D DOA estimation. Simulation results verify the validity of the proposed method.

Key words: array signal processing, planar array, two-Dimensional（2-D） DOA estimation, Propagator Method（PM）, automatically-paired