Journal
APPLIED ACOUSTICS
Volume 176, Issue -, Pages -Publisher
ELSEVIER SCI LTD
DOI: 10.1016/j.apacoust.2020.107865
Keywords
Multi-scale permutation entropy; Multi-scale dispersion entropy; Multi-scale reverse dispersion entropy; Feature extraction; Classification; Ship-radiated noise
Categories
Funding
- National Natural Science Foundation of China [61871318]
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A novel classification method for ship-radiated noise, MRDE-GRD, is proposed in this paper, which effectively extracts complexity features and achieves a recognition rate of 97.75%, outperforming other three classification methods.
In order to improve the classification performance of ship-radiated noise effectively, a comparative study of four multi-scale entropies is carried out by combining with grey relational degree (GRD) and a novel classification method for ship-radiated noise is proposed based on multi-scale reverse dispersion entropy (MRDE) and GRD, named MRDE-GRD. In this paper, MRDE is applied to the complexity feature extraction of ship-radiated noise under different scales, and GRD is used to identify different kinds of ship-radiated noise by calculating the GRD of the ship to be identified and reference ships. Experimental results show that the proposed MRDE-GRD classification method can effectively extract the complexity features of ship-radiated noise, and has better classification performance than the other three classification methods based on multi-scale permutation entropy (MPE), multi-scale weighted permutation entropy (MWPE) and multi-scale dispersion entropy (MDE) combined with GRD, named MPE-GRD, MWPE-GRD, and MDE-GRD. It is proved that the proposed classification method for ship-radiated noise is effective and achieves a recognition rate of 97.75%. (C) 2020 Elsevier Ltd. All rights reserved.
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