Results 21 to 30 of about 40,188 (259)
Tensor Completion From Regular Sub-Nyquist Samples
IEEE Transactions on Signal Processing, 2020 Signal sampling and reconstruction is a fundamental engineering task at the heart of signal processing. The celebrated Shannon-Nyquist theorem guarantees perfect signal reconstruction from uniform samples, obtained at a rate twice the maximum frequency present in the signal.
Charilaos I. Kanatsoulis +3 more
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Sub-Nyquist Sampling in Shift-Invariant Spaces
2020 28th European Signal Processing Conference (EUSIPCO), 2021 We introduce a novel framework for acquisition of analog signals by combining compressive sensing (CS) and the shift-invariant (SI) reconstruction procedure. We reinterpret the random demodulator as a system that acquires a linear combination of the samples in the conventional SI setting with the box function as the sampling kernel.
Vlašić, Tin, Seršić, Damir
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A Sub-Nyquist Uniform Linear Array Receiver Design
IEEE Access, 2021 A design of sub-Nyquist uniform linear array receiver with different sampling rates is proposed, investigated, and reported in this paper. The proposed architecture increases functionality of conventional linear array receiver with modest modifications ...
Chi-Hao Cheng
doaj +1 more source
Channel Capacity under General Nonuniform Sampling [PDF]
, 2012 This paper develops the fundamental capacity limits of a sampled analog channel under a sub-Nyquist sampling rate constraint. In particular, we derive the capacity of sampled analog channels over a general class of time-preserving sampling methods ...
Chen, Yuxin +2 more
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IEEE Photonics Journal, 2018 Delay-division-multiplexing (DDM) involves the use of signal preprocessing for the detection of data via sub-Nyquist analog-to-digital sampling, based on preallocated relative sampling delays among optical network users (ONUs) in an orthogonal frequency ...
Jhih-Hao Hsu +7 more
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High-Fidelity Compressive Heart Rate Tracking
IEEE Access, 2023 Recently, photoplethysmography sensors in smart watches have been frequently used to monitor heart rate. Because a photoplethysmography sensor flashes light on the skin and measures the reflected light, the rate of flashing and sampling is directly ...
Seungyoon Nam +2 more
doaj +1 more source
IEEE Access, 2020 In recent years, wideband spectrum sensing combined with sub-Nyquist sampling and compressed sensing technology in the field of cognitive radio has received widespread attention.
Jiai He, Wei Chen, Lu Jia, Tong Wang
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Special Considerations in Estate Planning for Same-Sex and Unmarried Couples [PDF]
, 2013 Sub-Nyquist sampling makes use of sparsities in analog signals to sample them at a rate lower than the Nyquist rate. The reduction in sampling rate, however, comes at the cost of additional digital signal processing (DSP) which is required to reconstruct
Johansson, Håkan +1 more
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Low Complexity Sub-Nyquist Wideband Spectrum Sensing for Cognitive Radio
IEEE Access, 2018 In order to provide more available spectrum and quickly switchover, wideband spectrum sensing (WSS) is desirable for cognitive radio. Sub-Nyquist sampling is crucial for WSS to reduce energy and computational costs, while the existing algorithms based on
Jian Yang, Min Jia, Xuemai Gu, Qing Guo
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From Theory to Practice: Sub-Nyquist Sampling of Sparse Wideband Analog Signals [PDF]
, 2009 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 ...
Eldar, Yonina C., Mishali, Moshe
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