关键词: 信息处理技术, 相干信号源, 目标方位估计, 垂直矢量阵, 计算到达角瞬态成像算法

Abstract: In order to get the spatial direction-of-arrival estimation of coherent sources, computed angle-of-arrival transient imaging (CAATI) algorithm was introduced in the vector sensor array, and CAATI algorithm using a vertical vector sensor array was proposed. It not only has the advantages of small number of snapshots, less computation and high estimation accuracy, but also has the capability of a vector sensor which can measure the acoustic pressure and particle velocity simultaneously and colocately, so the spatial direction-of-arrival of the target can be achieved with one dimension line array. The algorithm has better real time capability and lower hardware requirement in the practical application. The performance of the direction-of-arrival estimation was simulated and analyzed. The simulation results show that the proposed method is feasible.