Results 1 to 10 of about 19,817 (256)
Sub-Nyquist artefacts and sampling moiré effects [PDF]
Royal Society Open Science, 2015 Sampling moiré effects are well known in signal processing. They occur when a continuous periodic signal g(x) is sampled using a sampling frequency fs that does not respect the Nyquist condition, and the signal-frequency f folds over and gives a new ...
Isaac Amidror
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Sub-Nyquist SAR Based on Pseudo-Random Time-Space Modulation [PDF]
Sensors, 2018 Sub-Nyquist sampling technology can ease the conflict between high resolution and wide swath in a synthetic aperture radar (SAR) system. However, the existing sub-Nyquist SAR imposes a constraint on the type of the observed scene and can only reconstruct
Wenjiao Chen +3 more
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Channel Capacity under Sub-Nyquist Nonuniform Sampling [PDF]
IEEE Transactions on Information Theory, 2014 This paper investigates the effect of sub-Nyquist sampling upon the capacity of an analog channel. The channel is assumed to be a linear time-invariant Gaussian channel, where perfect channel knowledge is available at both the transmitter and the ...
Chen, Yuxin +2 more
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High-Frequency Ultrasound Imaging With Sub-Nyquist Sampling. [PDF]
IEEE Trans Ultrason Ferroelectr Freq Control, 2022 Implementation of a high-frequency ultrasound (HFUS) beamformer is computationally challenging because of its high sampling rate. This article introduces an efficient beamformer with sub-Nyquist sampling (or bandpass sampling) that is suitable for HFUS imaging.
Kang J, Yoon H, Yoon C, Emelianov SY.
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Sub-Nyquist SAR Imaging and Error Correction Via an Optimization-Based Algorithm [PDF]
SensorsSub-Nyquist synthetic aperture radar (SAR) based on pseudo-random time–space modulation has been proposed to increase the swath width while preserving the azimuthal resolution.
Wenjiao Chen +4 more
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Sub-Nyquist Channel Estimation over IEEE 802.11ad Link [PDF]
2017 International Conference on Sampling Theory and Applications (SampTA), 2017 Nowadays, millimeter-wave communication centered at the 60 GHz radio frequency band is increasingly the preferred technology for near-field communication since it provides transmission bandwidth that is several GHz wide.
Eldar, Yonina C., Mishra, Kumar Vijay
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Sub-Nyquist Sampling: Bridging Theory and Practice [PDF]
, 2011 Sampling theory encompasses all aspects related to the conversion of continuous-time signals to discrete streams of numbers. The famous Shannon-Nyquist theorem has become a landmark in the development of digital signal processing. In modern applications,
Eldar, Yonina C., Mishali, Moshe
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A Sub-Nyquist Radar Electronic Surveillance System
IEEE Access, 2018 The modulated wideband converter (MWC) is well-known for a sub-Nyquist wideband sampling capability based on compressed sensing (CS) theory. In this paper, our goal is to use the MWC as a base to design a sub-Nyquist radar electronic surveillance (ES ...
Jeong Park +3 more
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IEEE Access, 2022 Sub–Nyquist sampling is a technique which has various applications in signal processing and communication technologies. Memory relaxation, peripherals operating at relatively lower speeds, and consequently low–power consumption designs are ...
Gurkas-Aydin Zeynep, Serhan Yarkan
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Sub‐Nyquist receiver using sampling frequency and instant offsets
The Journal of Engineering, 2021 With rapid advance in analogue‐to‐digital converters, more analogue‐to‐digital converters in the market can cover multiple Nyquist zones. As a result, the implementation of a sub‐Nyquist receiver designed to cover a bandwidth wider than what is dictated ...
Chi‐Hao Cheng +2 more
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