Open AccessBlind signal separation method and relationship between source separation and source localisation in the TF plane
Author(s) -
Cholnam Om,
Chongil Gwak,
Kyong Chol Rim
Publication year - 2018
Publication title -
iet signal processing
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.384
H-Index - 42
ISSN - 1751-9683
DOI - 10.1049/iet-spr.2018.5132
Subject(s) - blind signal separation , source separation , signal (programming language) , distortion (music) , matrix (chemical analysis) , separation (statistics) , computer science , algorithm , permutation (music) , wideband , mathematics , acoustics , statistics , physics , telecommunications , chemistry , chromatography , optics , amplifier , channel (broadcasting) , bandwidth (computing) , programming language
A method for solving the instantaneous mixtures of the multiple non‐stationary wideband signals in the time–frequency (TF) plane is proposed. The blind source separation is performed by calculation of spatial TF distribution matrices, estimation of a separating matrix, estimation of permutation matrices and scaling matrices and TF synthesis. The simulation result shows that the proposed method improves the signal‐to‐distortion ratio than the preceding methods. Moreover, also the mutual relationship between the source localisation and the source separation is clarified. The source localisation methods using the source separation result and the source separation method using the source localisation result are proposed.