title: Minimum average configuration for a set of 'n' independent Bcg events.
abstract: Since the analysis of the Bcg signal in the time domain is conveniently performed on a one-heartbeat block obtained by averaging a number of such blocks extracted from a continuous recording, the problem exists of which is the best relative phasing of the blocks before averaging. Supposing that each block has been expanded in a truncated Fourier series, an algorithm is found that allows one to determine the relative phase shift of the blocks; this is done by imposing the requirement that the integral variance over the period be a minimum. The influence of this procedure is tested on the width of confidence limits of a measure of signal dispersion of two different Bcg beds.
mesh_terms: D000328:Adult; D001450:Ballistocardiography / Q000295:instrumentation / Q000379:methods*; D001513:Beds; D003201:Computers; D006339:Heart Rate; D006801:Humans; D008297:Male; D008955:Models, Cardiovascular; D013997:Time Factors