Title :
Modified adaptive line enhancement for evoked potential extraction
Author_Institution :
Dept. of Electr. & Comput. Eng., McMaster Univ., Hamilton, Ont., Canada
Abstract :
A method called modified adaptive line enhancement (MALE), which is used to obtain evoked potentials with a minimum number of stimulus repetitions, is described. The theory of MALE is developed, and the assumptions made are tested and shown to be adequate in the case of the brainstem auditory evoked potential. The signal distortion is characterized, and a method to alleviate the problem is developed. Using the weighted exact least squares lattice algorithm, the MALE method is implemented and applied to real data
Keywords :
bioelectric potentials; hearing; signal processing; brainstem auditory evoked potential; evoked potential extraction; modified adaptive line enhancement; signal distortion; stimulus repetitions minimisation; weighted exact least squares lattice algorithm; Adaptive filters; Autocorrelation; Filtering; Lattices; Least squares approximation; Least squares methods; Low-frequency noise; Noise reduction; Reactive power; Yttrium;
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.1989.95944
