Spatial aliasing을 고려한 시간-주파수 영역 이진마스크 기반 미지신호분리 알고리즘

Abstract

In this paper, the blind source separation(BSS) algorithm based on binary time-frequency(TF) mask which considers spatial aliasing problem is introduced. In high frequency region of TF domain, direction of arrival (DOA) information can be estimated wrong because of spatial aliasing and this leads to decrease the performance of conventional algorithm. To overcome such problem, we propose a new algorithm for compensating DOA information in high frequency region.