Nonlinear Mode Decomposition

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This work introduces a new method for analysing measured signals: nonlinear mode decomposition, or NMD. It justifies NMD mathematically, demonstrates it in several applications, and explains in detail how to use it in practice. Scientists often need to be able to analyse time series data that include a complex combination of oscillatory modes of differing origin, usually contaminated by random fluctuations or noise. Furthermore, the basic oscillation frequencies of the modes may vary in time; for example, human blood flow manifests at least six characteristic frequencies, all of which wander in time. NMD allows us to separate these components from each other and from the noise, with immediate potential applications in diagnosis and prognosis. MatLab codes for rapid implementation are available from the author. NMD will most likely come to be used in a broad range of applications.
This work introduces a new method for analysing measured signals: nonlinear mode decomposition, or NMD. It justifies NMD mathematically, demonstrates it in several applications and explains in detail how to use it in practice. Scientists often need to be able to analyse time series data that include a complex combination of oscillatory modes of differing origin, usually contaminated by random fluctuations or noise. Furthermore, the basic oscillation frequencies of the modes may vary in time; for example, human blood flow manifests at least six characteristic frequencies, all of which wander in time. NMD allows us to separate these components from each other and from the noise, with immediate potential applications in diagnosis and prognosis. Mat Lab codes for rapid implementation are available from the author. NMD will most likely come to be used in a broad range of applications.
Nominated as an outstanding PhD thesis by Lancaster University, UK Free MatLab codes available for all methods used in the book Details many important aspects of time-frequency analysis that are often touched upon only briefly in the literature Includes numerous examples and applications Includes supplementary material: sn.pub/extras

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Dmytro Iatsenko

Themen in »Nonlinear Mode Decomposition«

Ensemble empirical mode decomposition Nonlinear mode decomposition Signal analysis by decomposition Signal contamination by random fluctuations Signal contamination by random noise Time-frequency analysis Wavelet ridges Wavelet transform Windowed Fourier transform

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