Results 1 to 10 of about 1,805,271 (277)
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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SUMMeR: Sub-Nyquist MIMO Radar [PDF]
IEEE Transactions on Signal Processing, 2018 Multiple input multiple output (MIMO) radar exhibits several advantages with respect to traditional radar array systems in terms of flexibility and performance. However, MIMO radar poses new challenges for both hardware design and digital processing.
, Yonina C Eldar, Alexander M Haimovich
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A Sub-Nyquist Radar Electronic Surveillance System [PDF]
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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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
doaj +2 more sources
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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Clutter Removal in Sub-Nyquist Radar [PDF]
IEEE Signal Processing Letters, 2015 Recently, a new approach to sub-Nyquist sampling and processing in pulse-Doppler radar was introduced, based on the Xampling approach to reduced-rate sampling combined with Doppler focusing performed on the low-rate samples. This method imposes no restrictions on the transmitter, reduces both the sam- pling and processing rates and exhibits linear ...
Yonina C Eldar
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A Cognitive Sub-Nyquist MIMO Radar Prototype [PDF]
IEEE Transactions on Aerospace and Electronic Systems, 2020 15 pages, 18 figures, 4 tables.
Kumar Vijay Mishra +2 more
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Sub-Nyquist sampling for short pulses with Gabor frames [PDF]
EURASIP Journal on Wireless Communications and Networking, 2017 For analog signals comprised of several, possibly overlapping, finite duration pulses with unknown shapes and time positions, an efficient sub-Nyquist sampling systems is based on Gabor frames.
Cheng Wang +5 more
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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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