声矢量阵指向性

Directivity of acoustic vector array

单矢量传感器具有可电子旋转的偶极子指向性,声压、振速信息联合矢量信号处理在噪声背景下有良好的探测能力,矢量(传感器)阵能取得更好的能力。本文对理想条件下单矢量传感器、二元矢量阵的偶极子指向性和单边指向性进行了计算机仿真,并对单矢量传感器的指向性进行了水池实验,实验结果与仿真结果基本一致。结果表明矢量传感器具有较强的抗相干干扰和非相干干扰的能力。

Acoustic vector sensor with the electronic rotating directivity of dipole can effectively detect signal in the background of noises. More information can certainly be obtained by vector sensor array. The dipole and single-side directivity of single vector sensor or two elements vector array are simulated in computer in ideal condition and the directivity of single vector sensor is experimented in pool, the results of which are consistent with those of computer simulation. The results indicate that acoustic vector sensor can restrain coherent interference and incoherent interference.