Accession Number : AD0678163
Title : DIGITAL FILTERING WITH APPLICATIONS TO ELECTROCARDIOGRAM PROCESSING.
Descriptive Note : Technical rept.,
Corporate Author : STANFORD UNIV CALIF STANFORD ELECTRONICS LABS
Personal Author(s) : Weaver,C. S. ; von der Groeben,J. ; Mantey,P. E. ; Toole,J. G. ; Cole,C. A.
Report Date : JUN 1968
Pagination or Media Count : 111
Abstract : The first part of this paper is a description of the design of lowpass, bandpass, highpass, and notched filter difference equations using Z-transform techniques. The difference equation coefficient word lengths are significantly reduced by using a set of second-order difference equations. These equations have a form that minimizes computation. The second part of the paper contains applications of these filters to the processing of electrocardiograms (ECG). The filters are included as subroutines in a program that also includes an adaptive muscle tremor filter, an 'optimum' ECG estimator, and optimum estimators for the arrival time of various parts of the ECG waveform. Clinical results are presented. (Author)
Descriptors : (*ELECTROCARDIOGRAPHY, DATA PROCESSING), HEART, DIAGNOSIS(MEDICINE), PATTERN RECOGNITION, DIFFERENCE EQUATIONS, MUSCLES, INFORMATION THEORY, INTEGRAL TRANSFORMS, TRANSFER FUNCTIONS, ADAPTIVE SYSTEMS, FLOW CHARTING, COMPUTER PROGRAMS
Subject Categories : Medicine and Medical Research
Distribution Statement : APPROVED FOR PUBLIC RELEASE