Title :
Computer Equalization of Low-Frequency Components in Tape Recorded Electrocardiographic Signals
Author :
Arzbaecher, Robert C. ; Woolsey, Melvin D. ; Brody, Daniel A.
Author_Institution :
Department of Biomedical Engineering, Presbyterian-St. Luke´´s Hospital, Chicago, Ill.
Abstract :
Low-frequency equalization of a digitized electrocardiographic waveform has been accomplished by adding to the waveform several of its integrals, appropriately weighted. The weighting factors required for correction of distortion produced by a particular amplifier are initially obtained from a least squares correction of its step response. Neither analysis of the amplifier circuit, nor frequency-response testing is necessary.
Keywords :
Attenuation; Circuit testing; Coupling circuits; Distortion; Equalizers; Frequency; Helium; Least squares methods; Medical diagnostic imaging; Transfer functions; Computers; Electrocardiography; Tape Recording;
Journal_Title :
Biomedical Engineering, IEEE Transactions on
DOI :
10.1109/TBME.1967.4502513
