Sub-Nyquist processing with the modulated wideband converter

Sub-Nyquist systems capture the signal information in a different fashion than uniform high-rate samples. Consequently, digital processing, which is the prime reason for leaving the analog domain, becomes challenging. We propose a digital algorithm that translates samples obtained by the modulated w...

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Bibliographic Details
Main Authors: Mishali, M, Elron, A, Eldar, Y C
Format: Conference Proceeding
Language:English
Subjects:
Analog to digital conversion
Analog-digital conversion
balanced quadricorrelator
Baseband
compressed sensing
Demodulation
Digital modulation
Digital signal processing
Frequency
modulated wideband converter
Signal processing
Signal processing algorithms
Software algorithms
Wideband
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Summary:Sub-Nyquist systems capture the signal information in a different fashion than uniform high-rate samples. Consequently, digital processing, which is the prime reason for leaving the analog domain, becomes challenging. We propose a digital algorithm that translates samples obtained by the modulated wideband converter, a recent sub-Nyquist system, to the standard format of existing software packages. Our algorithm works in baseband, that is without the need to interpolate the samples to the Nyquist grid. Related methods such as nonuniform sampling or the random demodulator are shown to lack the baseband processing option.
ISSN:1520-6149
DOI:10.1109/ICASSP.2010.5495911