Envelope spectrum analysis of underwater target radiated noise based on harmonic wavelet

Lu Wang, Bo Lei

科研成果: 书/报告/会议事项章节会议稿件同行评审

1 引用 (Scopus)

摘要

Traditional methods can hardly extract the modulated information of underwater target radiated noise accurately. In this paper, a new analysis method of broadband noise envelope based on harmonic wavelet is proposed because it has advantages of band-pass filtering and Hilbert transform in the frequency domain. By using harmonic wavelet transformation, the target radiated noise will be decomposed with multi-resolution and high-precision, so that the frequency band which contains the strongest modulation will be obtained, and the modulated information can be demodulated easily. The experiment results of the oceanic signal show that, compared with the traditional envelope analysis methods, the proposed method can extract the modulated information of target radiated noise faster and more accurately, which will be helpful to improve the underwater target radiated noise signal detection and feature extraction.

源语言英语
主期刊名ICSP 2012 - 2012 11th International Conference on Signal Processing, Proceedings
215-218
页数4
DOI
出版状态已出版 - 2012
活动2012 11th International Conference on Signal Processing, ICSP 2012 - Beijing, 中国
期限: 21 10月 201225 10月 2012

出版系列

姓名International Conference on Signal Processing Proceedings, ICSP
1

会议

会议2012 11th International Conference on Signal Processing, ICSP 2012
国家/地区中国
Beijing
时期21/10/1225/10/12

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