A generalization of the Fourier transform and its application to spectral analysis of chirp-like signals

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Abstract

We show that the de Branges theory provides a useful generalization of the Fourier transform (FT). The formulation is quite rich in that by selecting the appropriate parametrization, one can obtain spectral representation for a number of important cases. We demonstrate two such cases in this paper: the finite sum of elementary chirp-like signals, and a decaying chirp using Bessel functions. We show that when defined in the framework of de Branges spaces, these cases admit a representation very much similar to the spectral representation of a finite sum of sinusoids for the usual FT. © 2011 Elsevier Inc. All rights reserved.

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APA

Mboup, M., & Adali, T. (2012). A generalization of the Fourier transform and its application to spectral analysis of chirp-like signals. Applied and Computational Harmonic Analysis. Academic Press Inc. https://doi.org/10.1016/j.acha.2011.11.002

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