A data processing system for the ballistocardiogram. Use of analog-to-digital conversion and a digital computer for operation of a mathematical model based on Noordegraaf's theory of the ballistocardiogram. NSAM-915.
D001450:Ballistocardiography; D003201:Computers; D003202:Computers, Analog; D001330:Electronic Data Processing; D008962:Models, Theoretical