Locating Ships Using Time Reversal and Matrix Pencil Method by Their Underwater Acoustic Signals

Sensors

Andres Gallego¹  Cesar Pedraza¹  Daniel Chaparro-Arce¹  Sergio Gutierrez¹  Felix Vega¹  Carlos Gutierrez² 

[1] Departamento de Ingeniería Eléctrica y Electrónica, Universidad Nacional de Colombia, Bogotá 111321, Colombia;Escuela Naval de Cadetes “Almirante Padilla”, Decanatura Ingenieria Naval, Cartagena 130001, Colombia;

关键词: matrix pencil method;    reconstruction;    complex natural resonances;    poles;    data compression;    location of boats;   

DOI  :  10.3390/s21155065

来源: DOAJ

【 摘 要 】

This paper presents a technique, based on the matrix pencil method (MPM), for the compression of underwater acoustic signals produced by boat engines. The compressed signal, represented by its complex resonance expansion, is intended to be sent over a low-bit-rate wireless communication channel. We demonstrate that the method can provide data compression greater than 60%, ensuring a correlation greater than 93% between the reconstructed and the original signal, at a sampling frequency of 2.2 kHz. Once the signal was reconstituted, a localization process was carried out with the time reversal method (TR) using information from four different sensors in a simulation environment. This process sought to achieve the identification of the position of the ship using only passive sensors, considering two different sensor arrangements.

【 授权许可】

Unknown