A sub-Nyquist reconfigurable receiver via random demodulation

Smaili, Sami; Massoud, Yehia

doi:10.1109/wamicon.2013.6572766

Cited by 5 publications

(1 citation statement)

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“…Both of these quantities are related to the window length. This problem is akin to that of designing FIR filters by the method of windowing: we want the filtered random sequence after windowing to exhibit only a small ripple in the stop-band [11]. In this letter we use a Chebyshev window because it has a good time-frequency localization and it still allows signal recovery.…”

Section: Shaping the Frequency Response Of The Sensing Signalsmentioning

confidence: 99%

A Multi-Channel Random Demodulation Reconfigurable Receiver

Smaili

Massoud

2014

IEEE Wireless Commun. Lett.

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In this letter, we propose a new approach to reconfigurable receivers using random acquisition techniques. Random projections have been widely used within the context of compressive sensing for sub-Nyquist signal acquisition. In the system we propose, we design the random sensing signals so as to filter undesired components in the signal and result in measurements equivalent to those obtained had the signal been filtered prior to acquisition. Because the random signals are digitally generated, the system is reconfigurable; the signal's components to be filtered can be changed by changing the digitally generated random signals. The system digitizes the measurements at a rate proportional to the desired bandwidth only, not the total signal bandwidth.

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Section: Shaping the Frequency Response Of The Sensing Signalsmentioning

confidence: 99%