Approximate Filtration of Noise Reflections in Hydroacoustic Signals

Author: Getmanov V.   Firsov A.  

Publisher: Springer Publishing Company

ISSN: 0543-1972

Source: Measurement Techniques, Vol.56, Iss.8, 2013-11, pp. : 919-927

Disclaimer: Any content in publications that violate the sovereignty, the constitution or regulations of the PRC is not accepted or approved by CNPIEC.

Previous Menu Next

Abstract

A method of approximate filtration of noise reflections is proposed for measurement of the coordinates of an object with a sound emitter moving in an aquatic environment. A passive hydroacoustic detection and ranging system based on a network of hydrophones is used in the measurements. A two-stage approximation algorithm is employed for digital processing of the Doppler hydroacoustic signals from the outputs of the hydrophones. An example illustrating implementation of the filtration method and its error is considered.