Title :
Multilead evoked potentials modelling based on the Prony´s method
Author :
Bouattoura, Djaaffar ; Gaillard, Paul ; Langevin, François ; Villon, Pierre
Author_Institution :
Dept. de Genie Inf., Univ. de Technol. de Compiegne, France
Abstract :
A method of modelling evoked potentials in the multielectrode case, using the Prony´s method, is proposed and tested on the human cerebral responses. The multichannel model is derived from the state-space representation of a single-input multi-output system according to the linear systems theory. The evoked potential is considered as an impulse response of a linear system. The Prony´s method is chosen, to estimate the model coefficients, for its ease and speed. To estimate correctly the visual evoked potential model, with this approach, only 100 ensemble averages are needed
Keywords :
bioelectric potentials; brain models; linear systems; state-space methods; system theory; visual evoked potentials; 100 ensemble averages; Prony´s method; evoked potential; human cerebral responses; impulse response; linear systems theory; model coefficients; multichannel model; multielectrode case; multilead evoked potentials modelling; single-input multi-output system; state-space representation; visual evoked potential model; Brain modeling; Delay; Electroencephalography; Fluctuations; Humans; IIR filters; Linear systems; Power system modeling; Signal processing; Testing;
Conference_Titel :
TENCON '96. Proceedings., 1996 IEEE TENCON. Digital Signal Processing Applications
Conference_Location :
Perth, WA
Print_ISBN :
0-7803-3679-8
DOI :
10.1109/TENCON.1996.608403
