矢量声压组合基阵MVDR近场聚焦波束形成

The MVDR near-field based on vector sound pressure array

介绍了矢量声压组合基阵MVDR近场聚焦波束形成的水下噪声源近场高分辨定位方法。该方法将MVDR高分辨方位估计方法应用于单矢量水听器与声压基阵构成的组合基阵中,利用矢量水听器的单边指向性,抑制噪声源定位中的左右模糊,并结合声压基阵MVDR算法高分辨定位优势,从而实现了水下噪声源近场高分辨定位,且可以有效抑制近场定位中的左右弦模糊,通过计算机仿真验证了算法的有效性,具有一定的工程应用价值。

This paper introduces high-resolution positioning method based on the near-field focusing beam-forming of vector sound pressure array MVDR near-field underwater noise. This method was be applied to the combinatory array of signal and multiple acoustic hydrophone. The analysis of the comparison points out that vector arrays can effectively eliminate the ambiguity between the port hand and the starboard with pressure arrays. And it can improve the absolute accuracy of the identification and localization through association high resolution of the vector sound pressure array MVDR. It can be approved its effectiveness and value in the project of the noise and vibration control.