Directional sparse filtering for blind estimation of under-determined complex-valued mixing matrices

• Main Authors: Nguyen, Anh Hai Trieu, Reju, Vaninirappuputhenpurayil Gopalan, Khong, Andy W. H.
• Other Authors: School of Electrical and Electronic Engineering
• Format: Article
• Language: English
• Published: 2020
• Subjects: Engineering::Electrical and electronic engineering; ICA; Directional Clustering
• Online Access: https://hdl.handle.net/10356/138107
• Institution: Nanyang Technological University

We propose an algorithm that exploits the benefits of sparse filtering and directional clustering when estimating under-determined mixing matrix from mixtures of sufficiently sparse sources. To express the direction of each sample by only a few vectors in which one vector is more dominant than the r...