Spectro-temporal mapping; improving frequency resolution with Prony spectral line estimation

Author

DiLorenzo, D.R. ; Moser, P.J. ; Sellers, T.D.

Author_Institution

Geisinger Med. Center, Danville, PA, USA

fYear

1991

fDate

23-26 Sep 1991

Firstpage

25

Lastpage

28

Abstract

Spectro-temporal mapping is used to analyze the electrocardiogram in the frequency domain while retaining time domain orientation. To improve the spectral resolution, Prony spectral line estimation was implemented on a 80386 microcomputer. Test signals reveal that an 8 millisecond signal has a spectral resolution of 5 Hertz as compared to the standard fast Fourier transformation (FFT) which has a resolution of 125 Hertz or greater, depending on the windowing function used. The algorithm was tested on signal-averaged electrocardiogram (SAECG) data and the short data segments allowed for detailed analysis of all areas of the signal

Keywords

electrocardiography; spectral analysis; 8 ms; 80386 microcomputer; Prony spectral line estimation; frequency domain analysis; frequency resolution; signal-averaged electrocardiogram data; spectral resolution; spectro-temporal mapping; windowing function; Frequency domain analysis; Frequency estimation; Gaussian distribution; Masers; Signal analysis; Signal processing; Signal resolution; Signal to noise ratio; Strontium; Testing;

fLanguage

English

Publisher

ieee

Conference_Titel

Computers in Cardiology 1991, Proceedings.

Conference_Location

Venice

Print_ISBN

0-8186-2485-X

Type

conf

DOI

10.1109/CIC.1991.169036

Filename

169036