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A new zoom algorithm and its use in frequency estimation

Manuel D. OrtigueiraAntónio S. SerralheiroJ. A. Tenreiro Machado — 2015

Waves, Wavelets and Fractals

This paper presents a novel zoom transform algorithm for a more reliable frequency estimation. In fact, in many signal processing problems exact determination of the frequency of a signal is of paramount importance. Some techniques derived from the Fast Fourier Transform (FFT), just pad the signal with enough zeros in order to better sample its Discrete-Time Fourier Transform. The proposed algorithm is based on the FFT and avoids the problems observed in the standard heuristic approaches. The analytic...

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