Subspace intersection using acoustic vector sensors by extracting main eigenspace of modal subspace
Weiwei Ai, Jinyu Xiong, Xiao‐Yong Zhang · 2016
The subspace intersection method using acoustic vector sensors [5] provides unbiased bearing estimates in a range-independent shallow ocean with the advantage of both subspace intersection(SI) method and acoustic vector sensors(AVS) array.But its robustness is poor.In this paper, an improved SI method based on extracting main eigenspace of modal subspace is proposed.Simulations show that the performance of the improved method in this paper is better than that of the improved method by compressing modal space with narrower main lobe width and lower estimation error.