Precise Estimation of Correlated Bio-Electromagnetic Activities in Deep Source Space

Abstract

In this paper, an improved Wiener inverse technique for precisely estimating the correlated bio-electromagnetic activities in the deep source space is proposed. A novel weighting matrix building method obtained from the sensitivity similarity degree of the sensor array between the sources is presented, so as to enhance the property representation for the correlated deep sources. The results confirm that the proposed technique provides more detailed information for the source estimation, improves the result accuracy, and is physically more reasonable than the conventional Wiener and beamformer techniques.