Localization of the complex spectrum: the S transform

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Authors R. G. Stockwell, L. Mansinha, R. Lowe
Journal/Conference Name IEEE Transactions on Signal Processing
Paper Category
Paper Abstract The S transform, which is introduced in the present correspondence, is an extension of the ideas of the continuous wavelet transform (CWT) and is based on a moving and scalable localizing Gaussian window. It is shown to have some desirable characteristics that are absent in the continuous wavelet transform. The S transform is unique in that it provides frequency-dependent resolution while maintaining a direct relationship with the Fourier spectrum. These advantages of the S transform are due to the fact that the modulating sinusoids are fixed with respect to the time axis, whereas the localizing scalable Gaussian window dilates and translates.
Date of publication 1996
Code Programming Language C
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