The compressive multiplexer for multi-channel compressive sensing

The recently developed compressive sensing (CS) framework enables the design of sub-Nyquist analog-to-digital converters. Several architectures have been proposed for the acquisition of sparse signals in large swaths of bandwidth. In this paper we consider a more flexible multi-channel signal model consisting of several discontiguous channels where the occupancy of the combined bandwidth of the channels is sparse. We introduce a new compressive acquisition architecture, the compressive multiplexer (CMUX), to sample such signals. We demonstrate that our architecture is CS-feasible and suggest a simple implementation with numerous practical advantages.

• Type: Journal
• Year: 2011
• Where: ICASSP
• Authors: John P. Slavinsky, Jason N. Laska, Mark A. Davenport, Richard G. Baraniuk
• Keywords: Architecture, Compressive, Compressive Acquisition Architecture, ICASSP 2011, Signal Processing