关键词: 信息处理技术, 矢量阵, 子空间拟合, 阵型校正

Abstract: Considered the advantage of combined processing by using pressure and particle velocity, a method for high resolution DOA estimation based on subspace fitting (vector sensor array subspace fitting, VSF) was proposed. The proposed method offered not only a lower complexity of calculation, but also an acceptable estimation and resolution performance. Aimed at the performance depravation of the method when the array element location error exists, an array correction method based on iterative optimization was proposed. The simulation results demonstrate that the correction method combining DOA estimation technology can effectively estimate the elements' location error by using single vector hydrophone and two disjoint sources, and the performance of the proposed correction method can be improved with the increase of signal-noise ratio of disjoint sources.