REVIEW ARTICLE


Radiated Noise Measurement of Ships Based on Stochastic Resonance



Chao Peng1, HaiXin Sun2, En Cheng*, 1
1 Key Laboratory of Underwater Acoustic Communication and Marine Information Technology Ministry of Education, Xiamen University, Xiamen, Fujian, 361005, China
2 Shanghai Sany Precision Machine CO., LTD, Shanghai, China
3 School of Electronic Engineering, Dongguan University of Technology, Dongguan, Guangdong, 523808, China

Article Information


Identifiers and Pagination:

Year: 2015
Volume: 9
First Page: 927
Last Page: 932
Publisher Id: TOMEJ-9-927
DOI: 10.2174/1874155X01509010927

Article History:

Received Date: 17/02/2014
Revision Received Date: 21/03/2015
Acceptance Date: 09/06/2015
Electronic publication date: 7/10/2015
Collection year: 2015

© 2015 Peng et al

open-access license: This is an open access article distributed under the terms of the Creative Commons Attribution 4.0 International Public License (CC-BY 4.0), a copy of which is available at: (https://creativecommons.org/licenses/by/4.0/legalcode). This license permits unrestricted use, distribution, and reproduction in any medium, provided the original author and source are credited.

* Address correspondence to this author at the Key Laboratory of Underwater Acoustic Communication and Marine Information Technology Ministry of Education, Xiamen University, Xiamen, Fujian, 361005, China; E-mail: chengen@xmu.edu.cn


Abstract

The radiated noise of ships involves strong low-frequency line spectrum, which is greatly related with the working states of auxiliary equipment and the rotation of propeller, and then regarded as the important basis in feature extraction of ships. Moreover, the stochastic resonance has special advantages in the extraction of weak signal. Aiming at the multi-frequency components in radiated noise of the ship with four-blade propeller, and the characteristic without adiabatic approximation assumption, a sweep-frequency stochastic resonance detection system is established in this paper. Meanwhile, a kind of detection method on multi-frequency signal with partitioning large parameters is proposed, in order to identify the components of low-frequency line spectrum in radiated noise of ship. The analysis and simulation results present that, under the strong noise background, the proposed method can still effectively detect the low-frequency line spectrum, which lays the solid foundation for the subsequent target recognition and speed estimation of the ship.

Keywords: Low-frequency line spectrum detection, multi-frequency signal with large parameters, ship radiated noise, stochastic resonance.