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A Study of Rate-analog Processing Methods for Physiological Data

Report Number: AMRL TDR 64-10
Author: Morton, George W.
Author: Rosov, Robert J.
Corporate Author: Airborne Instruments Laboratory
Laboratory: Biophysics Laboratory
Date of Publication: 1964-05
Pages: 16
Contract: AF 33(616)-10462
Project: 7222
Task: 722203
PB Number: PB127385
AD Number: AD0602983

Often the most useful information contained in signals of physiological origin is the period or repetition rate of the waveform. This information is not directly apparent through inspection of the raw signal but must be derived by an additional counting or measuring operation. A review of methods of providing a direct indication of rate, including generating trigger pulses from periodic physiological waveforms and techniques for converting the wave-repetition period into a rate analog are presented. Particular attention is given to the electrocardiographic signals as a vehicle for demonstrating a recommended rate analog processor circuit.

RAF Centre of Aviation Medicine
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