Title :
Impact of low-rate sampling on the reconstruction of ECG in phase-space
Author :
Huang, Bo ; Kinsner, W.
Author_Institution :
Dept. of Electr. & Comput. Eng., Manitoba Univ., Winnipeg, Man., Canada
Abstract :
This paper examines the chaotic and multifractal characteristics of the electrocardiogram (ECG) through its time series. Although multifractalities exist in the reconstructed strange attractor we find some limitations of strange attractor reconstruction from low-rate sampled (333 Hz) ECG signals by investigating the convergence of the false nearest neighbours and the Renyi dimension. The reconstruction parameters, lag of 4 and embedding dimension of 7, are obtained from experiments
Keywords :
chaos; electrocardiography; fractals; medical signal processing; signal reconstruction; signal sampling; 333 Hz; ECG reconstruction; ECG signals; Renyi dimension; biomedical signals; chaotic characteristics; electrocardiogram; embedding dimension; experiments; false nearest neighbours convergence; lag; low-rate sampling; multifractal characteristics; phase-space; reconstructed strange attractor; reconstruction parameters; strange attractor reconstruction; Biomedical measurements; Chaos; Convergence; Electrocardiography; Fractals; Frequency; Nonlinear dynamical systems; Rhythm; Sampling methods; Time measurement;
Conference_Titel :
Electrical and Computer Engineering, 2000 Canadian Conference on
Conference_Location :
Halifax, NS
Print_ISBN :
0-7803-5957-7
DOI :
10.1109/CCECE.2000.849761
