Title :
Real time estimation of evoked potentials by adaptive time-dependent filter
Author :
Fine, Menachem ; Furst, Miriam
Author_Institution :
Dept. of Electr. Eng. Syst., Tel-Aviv Univ., Israel
Abstract :
An improved consistent estimation of the signal is based on the average response. The proposed filter depends on the estimation of the signal and the noise autocorrelations. The filter coefficients are obtained by minimizing the mean squared error of the optimal filter of a non-stationary process applied on a single sweep. The average and autocorrelation matrixes can be built in real time without saving the measured data. A short off-line processing of the calculated data is needed afterwards
Keywords :
adaptive filters; bioelectric potentials; correlation methods; real-time systems; time-varying systems; adaptive time-dependent filter; average response; estimation of evoked potentials; mean squared error; noise autocorrelations; off-line processing; real time; Adaptive filters; Adaptive signal detection; Autocorrelation; Background noise; Electrical engineering; Real time systems; Signal detection; Signal processing; Signal to noise ratio; Systems engineering and theory;
Conference_Titel :
Electrical and Electronics Engineers in Israel, 1991. Proceedings., 17th Convention of
Conference_Location :
Tel Aviv
Print_ISBN :
0-87942-678-0
DOI :
10.1109/EEIS.1991.217648
