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This paper describes an Array-based Compressed sensing Receiver Architecutre (ACRA) which allows a digital receiver array to drastically increase its instantaneous bandwidth to detect, estimate, and determine angle of arrival of signals which are sparse in frequency or angle-frequency space. ACRA intentionally aliases the wideband signal at each element of the array, but uses different sampling rates...
This paper introduces the Array-based Compressed sensing Receiver Architecture (ACRA). ACRA allows digital receiver arrays to operate at dramatically larger instantaneous bandwidths by sampling the signals from different array elements at different sub-Nyquist sampling rates. Signal processing inspired by the sparse fast Fourier transform allows for signal detection, estimation, and angle-of-arrival...
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