Subspace regularization method for the single-trial estimation of evoked potentials

P.A. Karjalainen, J.P. Kaipio, A.S. Koistinen, M. Vauhkonen
1999 IEEE Transactions on Biomedical Engineering  
A method for single trial estimation of evoked potentials is proposed. The method is based on the subspace regularization approach in which the second order statistics of the set of measurements is used to form the prior information model for evoked potentials. The method was originally developed for the regularization of ill-posed inverse problems and it is especially tolerant to small misspecifications in the assumptions. It is shown in this paper that the approach is well suited to the
more » ... tion of evoked potentials. The method has close relationship to Bayesian estimation. The performance of the proposed method is evaluated using realistic simulations and the method is then applied to real measurements of evoked potentials.
doi:10.1109/10.771195 pmid:10396903 fatcat:eqgacjktxjfdbcqj5ibxjtc4cm