Research on Identification Technology of Ship Radiated Noise Based on Spectral Entropy Characteristics

DOI

10.2991/jiaet-18.2018.43How to use a DOI?

Keywords

signal identification, inter-frame spectral similarity, entropy characteristics

Abstract

There is a great difference between the inter-frame spectrum of ship radiated noise and marine biological noise, so we can identify the two kinds of signals with the difference of inter-frame spectral similarity. This paper describes the inter-frame spectral similarity of the two signals quantitatively with entropy characteristics.To reduce the instantaneous interferences, FFT transform should be done to the framing signals and the amplitude spectrum should be fitted, then calculating the spectral entropy. The amplitude of the spectrum should be taken the square into calculation to increase the differences of the consecutive frames. The result of calculation indicates that there is a great difference between the spectral entropy characteristics of ship radiated noise and marine biological noise, the entropy of ship radiated noise is steady,and the entropy of marine biological noise is unsteady. The difference of the two kinds of signals will be obvious if we take the variances of entropy as identifying characteristics.

Copyright

© 2018, the Authors. Published by Atlantis Press.

Open Access

This is an open access article distributed under the CC BY-NC license (http://creativecommons.org/licenses/by-nc/4.0/).

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TY  - CONF
AU  - Lv Haitao
AU  - Yang Rijie
AU  - Kong Xiaopeng
AU  - Zheng Xiaoqing
PY  - 2018/03
DA  - 2018/03
TI  - Research on Identification Technology of Ship Radiated Noise Based on Spectral Entropy Characteristics
BT  - Proceedings of the 2018 Joint International Advanced Engineering and Technology Research Conference (JIAET 2018)
PB  - Atlantis Press
SP  - 246
EP  - 250
SN  - 2352-5401
UR  - https://doi.org/10.2991/jiaet-18.2018.43
DO  - 10.2991/jiaet-18.2018.43
ID  - Haitao2018/03
ER  -