NDLI: Autoregressive estimation of closely-spaced spectra in the late potential region of the signal-averaged electrocardiogram as a function of segment width and ST slope

Content Provider	IEEE Xplore Digital Library
Author	Chan, E.K.Y.
Copyright Year	1992
Description	Author affiliation: Arrhythmia Res. Technol. Inc., Austin, TX, USA (Chan, E.K.Y.)
Abstract	Absence of late potentials (LPs) in the terminal QRS and the early ST segment of the signal-averaged electrocardiogram has been found to be a reliable predictor of electrical stability in post-myocardial infarction (MI) patients. The short-time Fourier transform (STFT) has been used for the analysis of overlapping segments-of-interest within the SP region, the result being a time-frequency plot called a spectral-temporal map (STM). Three spectral estimation techniques based on autoregressive (AR) models are compared with the more conventional STFT method for STM analysis. Results indicate that AR techniques provide improved resolution of closely spaced spectra even for short analysis segments having sharp gradients.<>
Starting Page	71
Ending Page	74
File Size	234249
Page Count	4
File Format	PDF
ISBN	0818635525
DOI	10.1109/CIC.1992.269444
Language	English
Publisher	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Publisher Date	1992-10-11
Publisher Place	USA
Access Restriction	Subscribed
Rights Holder	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Subject Keyword	Fourier transforms Electrocardiography Computational modeling Signal resolution Computer simulation Stability Time frequency analysis Linearity Merging Guidelines
Content Type	Text
Resource Type	Article

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Autoregressive estimation of closely-spaced spectra in the late potential region of the signal-averaged electrocardiogram as a function of segment width and ST slope