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Hilbert-Huang变换及其在心音信号分析中的应用 被引量:3

The Hilbert-Huang Transformation and Its Application to Analysis of Heart Sounds
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摘要 本文从窄带信号的角度对Hilbert-Huang变换进行探讨,证明了窄带实信号的相位等于其解析复信号的相位.据此说明:在Hilbert Huang变换中,进行经验模态分解(Empirical Mode Docomposition,简称EMD)后,若EMD筛选出的模式分量为一窄带信号,则随后进行Hilbert变换得到的瞬时时频分布及能量分布从数学上讲是合理的.而且从窄带信号的角度出发,可以深刻理解Nordeng E. Huang等人定义固有模态函数(Intrinsic Mode Function,简记为IMF)的依据,以及EMD方法的实质,即从信号本身出发,将其分解为一系列中心频率可变的窄带信号.同时,从该角度出发也揭示了为实施Hilbert-Huang变换,所需进行信号分解的方向.最后,本文示例了Hibert-Huang变换在心音信号中的应用.
出处 《信号处理》 CSCD 2003年第z1期312-315,共4页 Journal of Signal Processing
基金 云南自然科学基金资助项目,编号:2001C0004M 云南省信息技术人才培养基金资助项目.
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  • 1[1]Norden E. Huang,Zheng Shen,Steven R. Long, et al. The empirical mode decomposition and the Hilbert spectrum for nonlinear and non-stationary time series analysis. [J]Proc. R.Soc. Lond. A(1998)454:903-995. 被引量:1
  • 2[2]ZHAO Jin-ping(赵进平),HUANG Da-ji (黄大吉).MIRROR EXTEND AND CIRCULAR SPLINE FUNCTION FOR EMPIRICAL MODE DECOMPOSITION METHOD. [J]journal of Zhejiang University(SCIENCE) V.2,No.3, P247-252, July-Sep, 2001. 被引量:1

同被引文献24

  • 1刘慧婷,倪志伟,李建洋.经验模态分解方法及其实现[J].计算机工程与应用,2006,42(32):44-47. 被引量:28
  • 2Norden E, Huang Zheng-shen, Steven R L, et al. The Empirical Mode Decomposition and the Hilbert Spectrum for Nonlinear and Non-stationary Time Series Analysis [J]. Proceedings of the Royal Society, 1998 ( 454 ): 903-995. 被引量:1
  • 3李彬彬,袁中凡,杨春生.改进HHT算法及在心音信号分析中的应用[J].四川大学学报(工程科学版),2007,39(4):160-163. 被引量:10
  • 4Babaei S,G eranmayeh A. Heart sound reproduction based on neural network classification of cardiac valve disorders using wavelet transforms of PCG signals[J].Compute Biol Med,2009,(01):8-15. 被引量:1
  • 5Gupta CN,Palaniappan R,Swaminathan S. Neural network classification of homomorphic segmented heart sounds[J].Appl Soft Comp,2007,(07):286-297. 被引量:1
  • 6Uguz H,Arlan A,Turkoglu I. A biomedical system based on hidden Markov model for diagnosis of the heart vave diseases[J].PatternRecognition Letters,2007,(04):395-404. 被引量:1
  • 7Claypoole R L,Davis G M,Sweldens W. Nonlinear Wavelet Transforms for Image Coding via Lifting[J].{H}IEEE Transactions on Image Processing,2003,(12):1449-1459. 被引量:1
  • 8Sumeth Yuenyong,Akinori Nishihara,Waree Kongprawechnon. A framework for automatic heart sound analysis without segmentation[J].{H}BioMedical Engineering OnLine,2011,(01):10-13. 被引量:1
  • 9Huang Wentao,Shen Zhen,Steven R.Long. The empirical Mode decomposition and the Hilbert spectrum for nonlinear and nonstationary time series analysis[J].{H}Proceedings of the Royal Society of London Series A:Mathematical and Physical Sciences,1998.903-905. 被引量:1
  • 10Babaei S,Geranmayeh A.Heart sound reproduction based on neural network classification of cardiac valve disorders using wavelet transforms of PCG signals[J].Compute Biol Med,2009,39(1):8-15. 被引量:1

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