DOUBLE LOGARITHMIC QUANTIZATION OF THE WALSH SPECTRUM - APPLICATION TO REAL ECGS

Authors
BERTI E CHIARALUCE F EVANS NE MCKEE JJ
Citation
E. Berti et al., DOUBLE LOGARITHMIC QUANTIZATION OF THE WALSH SPECTRUM - APPLICATION TO REAL ECGS, Electronics Letters, 33(18), 1997, pp. 1513-1515
Citations number
4
Categorie Soggetti
Engineering, Eletrical & Electronic
Journal title
Electronics Letters → ACNP
ISSN journal
00135194
Volume
33
Issue
18
Year of publication
1997
Pages
1513 - 1515
Database
ISI
SICI code
0013-5194(1997)33:18<1513:DLQOTW>2.0.ZU;2-5
Abstract
The efficiency of ECG compression is confirmed using double logarithmi c quantisation of the Walsh spectrum by applying it to practical signa ls sourced from the MIT/BIH arrhythmia database. By classifying a comp ression procedure as 'good' when its MSE for a spectral reduction of 1 :1 is smaller than 0.005, the normal/abnormal ECG mix returned an over all 87% success rate for waveforms stored with between 8 and 11 bit re solution.