Results 231 to 240 of about 20,382 (275)

Synthesis and zero-dimensional structure of a new lead-free organic-inorganic[(C₂H₅)₄N]₃Bi₂I₉ compound: a promising material for optoelectronic devices. [PDF]

RSC Adv
Elgahami H, Ben Brahim K, Hajlaoui S, Alamri MA, Corbel G, Oueslati A.   +5 more
europepmc   +1 more source

Correction: <i>In situ</i> grown CNTs and electrodeposited MnO₂ on MXene-carbon nano-fibers for flexible supercapacitors with high energy density.

Chem Commun (Camb)
Feng B, Zhang D, Guo W, Wang Z, Cheng J, Yan H, Peng T, Qiu K, Jing F, Ge Y, Du M, Chu PK, Luo Y.   +12 more
europepmc   +1 more source

Lensless Quantitative Phase Imaging with Bayer-Filtered Color Sensors Under Sequential RGB-LED Illumination. [PDF]

J Imaging
Wu J, Li Y, Luo Y, Pan L, Song P, Xu Q.
europepmc   +1 more source

Interfacial Characterization of the Electrochemical Adsorption of Caffeine on Poly(pyrrole) Nanotubes/Silica. [PDF]

ACS Omega
Valerio TL, Boaron CK, Marchesi LF, da Silva BJG, Vidotti M.   +4 more
europepmc   +1 more source

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Sub-Nyquist Sampling

IEEE Signal Processing Magazine, 2011
In this article, we review sampling strategies that target reduction of the ADC rate below Nyquist. Our survey covers classic works from the early 1950s through recent publications from the past several years. The prime focus is bridging theory and practice, that is, to pinpoint the potential of sub-Nyquist strategies to emerge from the math to the ...
Yonina C Eldar
exaly   +2 more sources

Sub-NYQUIST Multichannel Blind Deconvolution

ICASSP 2021 - 2021 IEEE International Conference on Acoustics, Speech and Signal Processing (ICASSP), 2021
We consider a continuous-time sparse multichannel blind deconvolution problem. The signal at each channel is expressed as the convolution of a common source signal and its impulse response given as a sparse filter. The objective is to identify these sparse filters from sub-Nyquist samples of channel outputs by leveraging the correlation across channels.
Satish Mulleti, Kiryung Lee, Yonina C. Eldar   +2 more
openaire   +1 more source

Compressive sensing and sub-Nyquist sampling

IEEE Instrumentation & Measurement Magazine, 2020
The Nyquist-Shannon sampling theorem states that if all that you know about a signal is that its highest frequency is no greater than B, then if you want to sample the signal without any loss of information, you must sample it at a rate that is greater than 2B.
Roi Arie, Avraham Brand, Shlomo Engelberg   +2 more
openaire   +1 more source

Sub-Nyquist sampling with independent measurements

Signal Processing, 2020
Abstract This paper presents an efficient sub-Nyquist pulse-Doppler radar system via quadrature compressive sampling (QuadCS) in fast-time domain. QuadCS is a bandpass variant of random demodulation and inserts randomness into the measurement matrix by employing a random chipping signal.
Shengyao Chen, Zhiyong Cheng, Huizhang Yang, Feng Xi, Zhong Liu   +4 more
openaire   +1 more source

Sub-Nyquist Interferometry

Workshop on Optical Fabrication and Testing, 1986
The primary limitation of conventional phase-shifting or heterodyne interferometry (PSI) is its inability to measure the profile of surfaces or wavefronts with large departures from a best-fit reference sphere. The surface must have limited asphericity.
openaire   +2 more sources