Title :
MOSAICS: Multiplexed optimal signal acquisition involving compressed sensing
Author :
Satyanarayana, J.V. ; Ramakrishnan, A.G.
Author_Institution :
Dept. of Electr. Eng., Indian Inst. of Sci., Bangalore, India
Abstract :
It is possible to sample signals at sub-Nyquist rate and still be able to reconstruct them with reasonable accuracy provided they exhibit local Fourier sparsity. Underdetermined systems of equations, which arise out of undersampling, have been solved to yield sparse solutions using compressed sensing algorithms. In this paper, we propose a framework for real time sampling of multiple analog channels with a single A/D converter achieving higher effective sampling rate. Signal reconstruction from noisy measurements on two different synthetic signals has been presented. A scheme of implementing the algorithm in hardware has also been suggested.
Keywords :
analogue-digital conversion; signal detection; signal sampling; A-D converter; MOSAICS; compressed sensing algorithms; local Fourier sparsity; multiple analog channels; multiplexed optimal signal acquisition; signal reconstruction; sub-Nyquist rate; Accuracy; Compressed sensing; Hardware; Image reconstruction; Multiplexing; Noise; Time frequency analysis; A/D Conversion; Bandlimited signals; Compressed Sensing; Data acquisition; Fourier sparsity; Monopulse radar; Nyquist sampling theorem; Real time;
Conference_Titel :
Signal Processing and Communications (SPCOM), 2010 International Conference on
Conference_Location :
Bangalore
Print_ISBN :
978-1-4244-7137-9
DOI :
10.1109/SPCOM.2010.5560566