某水声测距定位系统信号控制处理方法探析

Discussion of a Method to Control and Process the Signal in the Acoustic Location System

介绍了对GPS时钟信号进行高低频调制的原理以及减少测时误差的方法和电路设计,对信号接收与检测电路各模块功能实现和设计进行了简要分析。结果表明,经过处理的时钟信号与声信号通过换能器进行相互转换能够在水介质中传输不失真,通过接收电路各模块的处理能够得到强度较高且规整的信号,满足检测使用要求。

The principle to modulate the GPS clock signal with high frequency signal was introduced, the method of decrease the error of time measurement and the design of the circuit were proposed. The result indicated that the GPS clock signal may transform into the a- coustic signal by the transducer, also it can convey in the water medium with undistortion. The regular and much stronger signal was received and disposed by the circuit, which meet the demand for detection and using.