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Hilbert-Huang transform tool box source code

fengxinzi517
2014-04-24 03:10:45		 The author
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Description

998, United States scientist Huang presents a new method for nonlinear and non-stationary signals processing: Hilbert-Huang transform (HHT). HHT method from signal itself features starting, with experience die State decomposition (EMD) method put signal decomposition into series of this levy die State function (IMF), then on these IMF component for Hilbert transform, thus get Shi frequency plane Shang energy distribution of Hilbert spectrum figure, break has measuring allowed principle of limit, can accurate to expression signal in Shi frequency surface Shang of various information.

HHT is the Hilbert-Huang Transform (Hilbert-Huang transform), and United States NASA crocodile invented by Professor Wong, probably is the process of first signal empirical mode decomposition (Empirical mode decomposition-EMD), concluded that intrinsic mode functions (IMF intrinsic mode function), the Hilbert transform of the intrinsic mode function, Hilbert spectrum, so as to further the signal time-frequency energy spectrum, and to analyze your signal, it has a good introduction to nonlinear and non-stationary signals analysis and treatment effects.
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