Title :
Adaptive QRS shape estimation using Hermite model
Author :
Laguna, P. ; Caminal, P. ; Thakor, N.V. ; Jane, R.
Author_Institution :
Inst. de Cibernetica, Barcelona, Spain
Abstract :
An estimation procedure is presented for dealing with beat-by-beat changes in the QRS complex. QRS is modeled by the first orthonormal Hermite functions. The Hermite coefficients and the width of the Gaussian function are adaptively estimated by the least mean square (LMS) algorithm. The adaptation is initiated by an impulse coincident in time with the QRS occurrence. Adaptation expressions and examples of performance are presented
Keywords :
electrocardiography; physiological models; Gaussian function; Hermite model; adaptation expressions; adaptive QRS shape estimation; beat-by-beat changes; estimation procedure; least mean square algorithm; Cardiac disease; Clinical diagnosis; Electrocardiography; Heart rate interval; Information analysis; Least squares approximation; Mathematical model; Pathology; Shape; Signal analysis;
Conference_Titel :
Engineering in Medicine and Biology Society, 1989. Images of the Twenty-First Century., Proceedings of the Annual International Conference of the IEEE Engineering in
Conference_Location :
Seattle, WA
DOI :
10.1109/IEMBS.1989.95930
