点击次数：

论文类型：期刊论文

发表时间：2015-03-01

发表刊物：IEEE TRANSACTIONS ON SIGNAL PROCESSING

收录刊物：SCIE、EI、Scopus

卷号：63

期号：5

页面范围：1322-1334

ISSN号：1053-587X

关键字：Blind source separation; joint diagonalization; LU decomposition; successive rotation

摘要：Non-orthogonal joint diagonalization (NJD) free of prewhitening has been widely studied in the context of blind source separation (BSS) and array signal processing, etc. However, NJD is used to retrieve the jointly diagonalizable structure for a single set of target matrices which are mostly formulized with a single dataset, and thus is insufficient to handle multiple datasets with inter-set dependences, a scenario often encountered in joint BSS (J-BSS) applications. As such, we present a generalized NJD (GNJD) algorithm to simultaneously perform asymmetric NJD upon multiple sets of target matrices with mutually linked loading matrices, by using LU decomposition and successive rotations, to enable J-BSS over multiple datasets with indication/exploitation of their mutual dependences. Experiments with synthetic and real-world datasets are provided to illustrate the performance of the proposed algorithm.