DocumentCode
1434677
Title
An inverse signal approach to computing the envelope of a real valued signal
Author
Kumaresan, Ramdas
Author_Institution
Dept. of Electr. Eng., Rhode Island Univ., Kingston, RI, USA
Volume
5
Issue
10
fYear
1998
Firstpage
256
Lastpage
259
Abstract
We address the problem of estimating the envelope of a real valued signal, s(t) that is observed for a duration of T seconds. We model s(t) using a Fourier series, by considering periodic extensions of the signal. By using an analog of the auto-correlation method of linear prediction on the Fourier coefficients of s(t) the envelope of the signal is estimated without explicitly computing the analytic signal.
Keywords
discrete Fourier transforms; frequency estimation; inverse problems; prediction theory; signal processing; spectral analysis; DFT; Fourier coefficients; Fourier series; analytic signal; auto-correlation method; envelope estimation; instantaneous frequency estimation; inverse signal approach; linear prediction; periodic signal extensions; real valued signal envelope; sequence; spectral analysis; spectral domain; Analog computers; Autocorrelation; Convolution; Finite impulse response filter; Fourier series; Frequency; Narrowband; Nonlinear filters; Signal analysis; Speech processing;
fLanguage
English
Journal_Title
Signal Processing Letters, IEEE
Publisher
ieee
ISSN
1070-9908
Type
jour
DOI
10.1109/97.720558
Filename
720558
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