Improving Performance of Lar／Starboard Based on Inverse Beamforming of the Vector Array

摘要

The acoustic vector array can distinguish the target impinging from starboard or larboard, which depends on the directivity pattern formed by the vector sensors. But when signals with different power impinging from the symmetric direction, the power difference can’t be used to judge the real direction of the targets. This paper researches the judging methods to estimate whether a single target impinging from one side or two targets from two sides with different power. A new judgment algorithm based on the inverse beamforming is proposed. And computer simulations are given at last.