便携式水下声信标探测定位设备技术设计与实现

针对声基阵水下搜寻定位系统需要使用大型船只及直升机等大型操作平台的缺点,介绍了一种简单、便携、高效的水下声信标探测定位设备的设计与实现方法.利用指向性水听器及混频方法,将需要探测和定位的水下声信标信号通过音频形式输出,充分利用指向性水听器较普通水听器空间增益高以及人耳对信号识别能力强的特点,提高了复杂海况条件下对弱信号的检测能力.阐述了设备的组成、工作原理以及设备主要单元的设计方法,给出了设备样机在海上试验的结果,并对其适用的场合进行了说明.

The design and implementation in portable underwater acoustic beacon detection and orientation equipment

Aiming at the defect which the underwater search orientation system based on acoustic array requires use the big ship and helicopter.This report introduces the design and realization of the underwater detective search instrument which is simple,portable,high efficient.The use of directional hydrophone and mixing methods,the underwater acoustic beacon signal required for detection and orientation is output for the audio format.It utilizes the space gain of directional hydrophone which is higher than the common one and the strong ability that human distinguish from signal.It improves the detectability of weak signal in the complex condition of sea.The report expatiates on the composition,operation principle and the designing method of the primary unit of the instrument,gives the experiment result on the sea for the swatch instrument,and explains the available situation of the instrument.