基于矢量水听器的信号调理电路设计研究

Research on Signal Conditioning Circuit Design Based on Vector Hydrophone

矢量水听器可以有效地获取水下的声信号,并将其转化成可以进行处理的电信号,但是此信号十分微弱,并且掺杂着水中复杂的噪声,为了有效实现信号处理,设计了信号调理电路,分为电源模块、放大模块和滤波模块,可以提高输出信号的信噪比。通过对电路进行仿真以及测试实验,验证了设计的有效性。

The vector hydrophone can be used to obtain acoustic signal efficiently and transform it into electric signal which can be processed. But the signal is very weak and consists of complex subaqueous noise. In order to obtain the useful signal and improve the SNR of output signal,a signal conditioning circuit is designed,including power supply module,amplifier module and filter module. The software simulation and test results show that the design scheme is available.