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The new multidimensional time/multi-frequency transform for higher order spectral analysis

By Leonid Gelman and Ivan Petrunin


A new multidimensional time/multi-frequency higher order spectral(HOS) transform is proposed for transient signals with nonlinear polynomial variation of instantaneous frequency: the short time higher order chirp spectra (HOCS) based on the higher order chirp-Fourier transform and time-domain windowing technique. The proposed transform is compared with the classical multi-frequency HOS based on the Fourier transform. It is shown that the proposed transform is more effective for processing of transient processes in comparison with the classical transform

Topics: Multidimensional transform, Multi-frequency, Spectral analysis, High order spectra, Chirp-Fourier transform
Publisher: Springer Science Business Media
Year: 2007
DOI identifier: 10.1007/s11045-006-0005-9
OAI identifier:
Provided by: Cranfield CERES

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