Aplikace/Elektronický dokument

Rozhodovací procesy a klasifikace

2008

These four algorithms are related to a manuscript ``A Fast Approximate Joint Diagonalization Algorithm Using a Criterion with a Block Diagonal Weight Matrix" by Tichavsky, Yeredor and Nielsen, which was presented at ICASSP 2008 in Las Vegas. In the conference paper, the former two algorithms were called UWAJD and WAJD. BG_WEDGE is a combination of UWEDGE and WEDGE with properly adjusted weights, suitable for the Block Gaussian scenario. It represents a fast alternative to the Pham's algorithm "jadiag".

The WASOBI below is an improved implementation of the algorithm, which does not use ffdiag anymore but is based on UWEDGE and WEDGE. It is termed IWASOBI and is faster than previous versions WASOBI and EWASOBI. The IWASOBI algorithm allows separation of 100+ AR sources in order of seconds. UWEDGE, WEDGE, BG_WEDGE and IWASOBI. As a reference for WASOBI, you can also cite our EUSIPCO'06 paper (see Publications).