2010
DOI: 10.1109/jstsp.2010.2042414
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From Theory to Practice: Sub-Nyquist Sampling of Sparse Wideband Analog Signals

Abstract: Abstract-Conventional sub-Nyquist sampling methods for analog signals exploit prior information about the spectral support. In this paper, we consider the challenging problem of blind sub-Nyquist sampling of multiband signals, whose unknown frequency support occupies only a small portion of a wide spectrum. Our primary design goals are efficient hardware implementation and low computational load on the supporting digital processing. We propose a system, named the modulated wideband converter, which first multi… Show more

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Cited by 1,044 publications
(940 citation statements)
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“…Figure 2 shows the single tone signal convoluted with time stretched MLL Gaussian pulses. As the number of measurements required linearly dependent on sparse tones, the number of measurements required are higher in this case 17 .…”
Section: Resultsmentioning
confidence: 98%
“…Figure 2 shows the single tone signal convoluted with time stretched MLL Gaussian pulses. As the number of measurements required linearly dependent on sparse tones, the number of measurements required are higher in this case 17 .…”
Section: Resultsmentioning
confidence: 98%
“…Lastly, this estimation technique can, in principle, be extended to other CS sampling structures. In particular, the modulated wideband converter [4] operates on the same principles as the MC sampler and results in nearly the same Fourier description. Thus, despite the differences in the systems' sampling mechanisms, it should be possible to develop a similar estimator for the modulated wideband converter.…”
Section: Resultsmentioning
confidence: 99%
“…A number of compressed sensing (CS) structures have been proposed for sub-Nyquist sampling of continuous-time signals [1][2][3][4]. 1 All of these systems extend CS theory and serve as viable mechanisms to "compressively" acquire these types of signals.…”
Section: Introductionmentioning
confidence: 99%
“…이러한 문제를 기술적으로 해결하 [19,20] . 압축 센싱 이론은 신호처리분야 전 반에 활용 가능한 일반적인 이론으로 이를 스펙트럼 센싱에 적용하기 위한 선행 연구들이 진행되었다 [16,21] . [13] .…”
Section: 자원의 확보를 위한 유연한 주파수 이용 및 공유를 위 한 기술기준 간섭 분석·관리 등 스펙트럼 이용 정책 unclassified