Intelligent Distributed Virtual System for Underwater Acoustic Source Localization and Sounds Classification

This paper presents a distributed passive sonar system including a linear three hydrophones array used to acquire sounds and to perform the localization of the underwater acoustic source. The voltages of hydrophone´ channels are applied on the analog input of a multifunction I/O board that represent an important component of a distributed virtual measurement system that includes capabilities on acoustic signal acquisition and generation and advanced signal processing. Additional measurement channel associated with water quality monitoring is included in the system. PDA technology is also part of the work and is related with signal generation for localization algorithm testing. Two GPS systems are used to localize a base and a remote measuring station during the localization tests. Related advanced signal processing is mentioned the developed wavelet filtering blocks for signal filtering and feature extraction as so as the neural network acoustic signal classifier.