海军工程大学兵器工程系,湖北,武汉,430033
纸质出版:2009
移动端阅览
姜润翔, 史建伟, 龚沈光. 基于尺度—小波能量谱的船舶水压场信号检测[J]. 电子学报, 2009,37(1):122-125.
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.
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.
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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