Kronecker product matrices for compressive sensing

Compressive sensing (CS) is an emerging approach for acquisition of signals having a sparse or compressible representation in some basis. While CS literature has mostly focused on problems involving 1-D and 2-D signals, many important applications involve signals that are multidimensional. We propose the use of Kronecker product matrices in CS for two purposes. First, we can use such matrices as sparsifying bases that jointly model the different types of structure present in the signal. Second, the measurement matrices used in distributed measurement settings can be easily expressed as Kronecker products. This new formulation enables the derivation of analytical bounds for sparse approximation and CS recovery of multidimensional signals.

• Type: Conference
• Year: 2010
• Where: ICASSP
• Authors: Marco F. Duarte, Richard G. Baraniuk
• Keywords: Compressible Representation, ICASSP 2010, Kronecker Product Matrices, Kronecker Products, Signal Processing