Title :
Assessing determinism of photo-plethysmographic signal
Author :
Bhattacharya, Joydeep ; Kanjilal, Partha Pratim
Author_Institution :
Max-Planck-Inst. fur Phys. Komplex Syst., Dresden, Germany
fDate :
7/1/1999 12:00:00 AM
Abstract :
A study was performed to analyze the signal obtained from a noninvasive photo-plethysmographic device from four subjects in different clinical conditions. With the help of the theory of nonlinear dynamics, it is verified that the cardiovascular dynamics is dominated by an underlying chaotic attractor. A new robust and computationally efficient method is presented for the detection of the hidden deterministic structure of a time series. It is shown that the degree of chaos as well as the underlying determinism is directly related to the subject´s clinical stability
Keywords :
cardiovascular system; chaos; computational complexity; medical signal processing; nonlinear dynamical systems; optical instruments; plethysmography; singular value decomposition; time series; cardiovascular dynamics; chaotic attractor; clinical stability; determinism assessment; hidden deterministic structure; noninvasive photoplethysmographic device; nonlinear dynamics; photoplethysmographic signal; robust computationally efficient method; signal analysis; time series; Automatic control; Control system synthesis; Flexible manufacturing systems; Manufacturing automation; Manufacturing systems; Merging; Petri nets; Robotics and automation; System recovery; Virtual manufacturing;
Journal_Title :
Systems, Man and Cybernetics, Part A: Systems and Humans, IEEE Transactions on
DOI :
10.1109/3468.769760
