压差式矢量水听器定向系统

摘要

A passive acoustic directional system for underwater targets is proposed, which is based on the directional principle of vector hydrophone. The system combines the information of the pressure and vibration velocity of the target acoustic field. It is consisted of two parts, the direction finding system based on the directional principle of pressure-differential vector hydrophone, and the DSP system. The labortatory experiment shows that the directional algorithm and the hardware system have a high accuracy of passive acoustic direction and the maximal error is less than 2 degrees. The system has been applied to the underwater targets.%由于基于声压水听器的定向系统在小体积和低频段时定向精度很低,不能满足深弹要求,因此研究了基于压差式矢量水听器的水下目标被动声定向系统.该系统采用声压和振速联合处理的方法获得目标的方向,由压差式矢量水听器和DSP软硬件系统组成.在实验室,用模拟的信号和软硬件系统进行了试验研究,证明压差式矢量水听器在低频段和小尺寸条件下具有可靠的定向性能和2 °的方位角定向精度.