Ship Hydrodynamic Pressure Field Signal Detection Based on Scale Wavelet Power Spectrum

JIANG Run-xiang; SHI Jian-wei; GONG Shen-guang

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Ship Hydrodynamic Pressure Field Signal Detection Based on Scale Wavelet Power Spectrum

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- Ship Hydrodynamic Pressure Field Signal Detection Based on Scale Wavelet Power Spectrum
- Acta Electronica Sinica Vol. 37, Issue 1, Pages: 122-125(2009)
- 作者机构：
  
  海军工程大学兵器工程系,湖北,武汉,430033
- 作者简介：
- 基金信息：
- DOI：
  CLC： TH878
- Published：2009
- 稿件说明：
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JIANG Run-xiang, SHI Jian-wei, GONG Shen-guang. Ship Hydrodynamic Pressure Field Signal Detection Based on Scale Wavelet Power Spectrum[J]. Acta Electronica Sinica, 2009, 37(1): 122-125.
DOI：

JIANG Run-xiang, SHI Jian-wei, GONG Shen-guang. Ship Hydrodynamic Pressure Field Signal Detection Based on Scale Wavelet Power Spectrum[J]. Acta Electronica Sinica, 2009, 37(1): 122-125. DOI：

摘要

为了有效地从风浪背景中检测船舶水压场信号

本文利用连续小波变换分析了实测海浪水压场与船舶水压场的尺度—小波能量谱

根据两者的能量差异

提取某一特征尺度范围内的能量和为特征

采用滑动检测方法对信号进行实时检测.通过实测数据和仿真数据对该检测算法进行验证

结果表明此方法在低信噪比情况下

能较好的检测到目标信号.

Abstract

In order to effectively detect ship hydrodynamic pressure field signal from wind wave background

a target detection method has been proposed based on the feature extracted according to the difference of scale wavelet power spectrum between the ship hydrodynamic pressure field signal and the wave hydrodynamic pressure field signal.By means of this method

it is possible to recognize whether target signal is involved or not in received signal.The effectiveness of the method is verified by a real target signal with additive real noise signal

especially under the high sea state and condition of low SNR.

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Related Institution

National Key Laboratory for Radar Signal Processing,Xidian University

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