Short-time Fourier transform using a bank of low-pass filters

The purpose of this paper is to present some experimental results estimating instantaneous frequencies of FM (frequency modulation) signals using the short-time Fourier transform (STFT) method. The relevant STFT coefficients were computed using a bank of simple one-pole low-pass filters which estima...

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Bibliographic Details
Published in:IEEE transactions on acoustics, speech, and signal processing speech, and signal processing, 1985-02, Vol.33 (1), p.182-185
Main Authors: Dae Youn, Jin-Geol Kim
Format: Article
Language:English
Subjects:
Applied sciences
Bandwidth
Circuit properties
Cities and towns
Electric, optical and optoelectronic circuits
Electronic circuits
Electronics
Exact sciences and technology
Filter bank
Finite impulse response filter
Fourier transforms
Frequency estimation
Frequency filters
Frequency modulation
Least squares approximation
Low pass filters
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Summary:The purpose of this paper is to present some experimental results estimating instantaneous frequencies of FM (frequency modulation) signals using the short-time Fourier transform (STFT) method. The relevant STFT coefficients were computed using a bank of simple one-pole low-pass filters which estimates the cross correlation of a given signal and complex sinusoids. Also, it is shown that computing the STFT coefficients is equivalent to finding the least square solution which best approximates the given signal as a weighted sum of complex sinusoids.
ISSN:0096-3518
DOI:10.1109/TASSP.1985.1164509