Title :
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
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;
Conference_Titel :
Computers in Cardiology 1991, Proceedings.
Conference_Location :
Venice
Print_ISBN :
0-8186-2485-X
DOI :
10.1109/CIC.1991.169036
