声传感器阵列的实验研究

海洋中对目标的判决主要依靠于水听器阵列对水声信号的检测。为了对比声压阵与矢量阵对信号的检测能力,首先计算机仿真了声压阵和矢量阵的增益及其对目标方位的估计,而后加以实验验证。实验结果表明,矢量阵的增益高于声压阵,且其克服了声压阵左、右舷模糊的问题,能精确的对目标方位进行估计并完成对水下运动目标的航迹跟踪,从而验证了矢量阵的优越性。

Experiment Research on acoustic sensor Array

Decision on the target in ocean is mainly depended on the hydrophone array for acoustic detection.In order to compare the detection capability of pressure-sensor array and MEMS vector array,simulation of gain and performance of target estimation has been done,further,experimental research was conducted.It is shown by the experiment that the gain of the vector array is higher than pressure-sensor array,the vector array has eliminated the port and starboard ambiguity which existed with pressure-sensor array,the direction estimation and the tracking of underwater moving target can be achieved by vector array,thus,it is concluded the superiority of the MEMS vector array.