TY - GEN
T1 - A prototype hardware for random demodulation based compressive analog-to-digital conversion
AU - Ragheb, Tamer
AU - Laska, Jason N.
AU - Nejati, Hamid
AU - Kirolos, Sami
AU - Baraniuk, Richard G.
AU - Massoud, Yehia
PY - 2008
Y1 - 2008
N2 - In this paper, we utilize recent advances in compressive sensing theory to enable signal acquisition beyond Nyquist sampling constraints. We successfully recover signals sampled at sub-Nyquist sampling rates by exploiting additional structure other than bandlimitedness. We present a working prototype of compressive analog-to-digital converter (CADC) based on a random demodulation architecture. The architecture is particularly suitable for wideband signals that are sparse in the time-frequency plane. CADC has the advantage of enhancing the performance of communication and multimedia systems by increasing the transmission rate for the same bandwidth. We report successful reconstruction of AM modulated signals at sampling rates down to 1/8 of the Nyquist-rate, which represents an up to 87.5% savings in the bandwidth and the storage memory.
AB - In this paper, we utilize recent advances in compressive sensing theory to enable signal acquisition beyond Nyquist sampling constraints. We successfully recover signals sampled at sub-Nyquist sampling rates by exploiting additional structure other than bandlimitedness. We present a working prototype of compressive analog-to-digital converter (CADC) based on a random demodulation architecture. The architecture is particularly suitable for wideband signals that are sparse in the time-frequency plane. CADC has the advantage of enhancing the performance of communication and multimedia systems by increasing the transmission rate for the same bandwidth. We report successful reconstruction of AM modulated signals at sampling rates down to 1/8 of the Nyquist-rate, which represents an up to 87.5% savings in the bandwidth and the storage memory.
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U2 - 10.1109/MWSCAS.2008.4616730
DO - 10.1109/MWSCAS.2008.4616730
M3 - Conference contribution
AN - SCOPUS:54249128914
SN - 9781424421671
T3 - Midwest Symposium on Circuits and Systems
SP - 37
EP - 40
BT - 2008 IEEE International 51st Midwest Symposium on Circuits and Systems, MWSCAS
T2 - 2008 IEEE International 51st Midwest Symposium on Circuits and Systems, MWSCAS
Y2 - 10 August 2008 through 13 August 2008
ER -