A combined approach of array processing and independent component analysis for blind separation of acoustic signals
Fumihiko Asano, Shiro Ikeda, Mariko Ogawa, Hideki Asoh, Nobuhiko Kitawaki · 2002
Two array signal processing techniques are combined with independent component analysis to enhance the performance of blind separation of acoustic signals in a reflective environment such as rooms. The first technique is the subspace method which reduces the effect of room reflection. The second technique is a method of solving the permutation, in which the coherency of the mixing matrix in adjacent frequencies is utilized.