Application of SN-EMD in Mode Feature Extraction of Ship Radiated Noise
Joint Authors
Zhao, Anbang
Niu, Fang
Hui, Juan
Cheng, Yue
Chen, Yang
Source
Mathematical Problems in Engineering
Issue
Vol. 2018, Issue 2018 (31 Dec. 2018), pp.1-16, 16 p.
Publisher
Hindawi Publishing Corporation
Publication Date
2018-12-03
Country of Publication
Egypt
No. of Pages
16
Main Subjects
Abstract EN
Due to the randomness of added noise, noise-assisted versions based on EMD (empirical mode decomposition) usually cause new “mode mixing” problem.
In addition, these algorithms also have problems such as high time-consuming and large recovering error.
For the reasons, a new method SN-EMD (Selective Noise-assisted EMD) is put forward in this paper.
It determines whether to add noise as assistance by judging whether there is high frequency intermittent component contained in the signal or not.
The new method was proved to have the optimal performance by comparing the performance parameters for evaluating the decomposition.
In this paper, SN-EMD was used to decompose ship radiated noise.
On account of the differences in the original information contained in each mode of radiated noise signals from different ship, we selected the first three modes for processing.
Average instantaneous frequency, center frequency, energy density, and energy distribution ratio were extracted as mode feature of ship targets for classification and recognition.
Spatial distribution of the feature quantities in three-dimensional space verified similarity of the same target and separability of different targets.
American Psychological Association (APA)
Niu, Fang& Hui, Juan& Zhao, Anbang& Cheng, Yue& Chen, Yang. 2018. Application of SN-EMD in Mode Feature Extraction of Ship Radiated Noise. Mathematical Problems in Engineering،Vol. 2018, no. 2018, pp.1-16.
https://search.emarefa.net/detail/BIM-1206124
Modern Language Association (MLA)
Niu, Fang…[et al.]. Application of SN-EMD in Mode Feature Extraction of Ship Radiated Noise. Mathematical Problems in Engineering No. 2018 (2018), pp.1-16.
https://search.emarefa.net/detail/BIM-1206124
American Medical Association (AMA)
Niu, Fang& Hui, Juan& Zhao, Anbang& Cheng, Yue& Chen, Yang. Application of SN-EMD in Mode Feature Extraction of Ship Radiated Noise. Mathematical Problems in Engineering. 2018. Vol. 2018, no. 2018, pp.1-16.
https://search.emarefa.net/detail/BIM-1206124
Data Type
Journal Articles
Language
English
Notes
Includes bibliographical references
Record ID
BIM-1206124