Results 11 to 20 of about 40,188 (259)
On the Minimax Capacity Loss under Sub-Nyquist Universal Sampling
IEEE Transactions on Information Theory, 2017 This paper investigates the information rate loss in analog channels when the sampler is designed to operate independent of the instantaneous channel occupancy.
Chen, Yuxin +2 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
Sub-Nyquist Sampling OFDM Radar
IEEE Transactions on Radar Systems, 2023 In this paper, we propose a sub-Nyquist sampling (SNS) orthogonal frequency-division multiplexing (OFDM) radar system capable of reducing the analog-to-digital converter (ADC) sampling rate in OFDM radar without any additional manipulations of its hardware and waveform.
Kawon Han +2 more
openaire +2 more sources
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
doaj +1 more source
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 sampling of short pulses [PDF]
2011 IEEE International Conference on Acoustics, Speech and Signal Processing (ICASSP), 2011 28 ...
Matusiak, Ewa, Eldar, Yonina C.
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A hardware prototype of sub‐Nyquist radar with unknown pulses
Electronics Letters, 2021 In a conventional radar system, the hardware cost increases with the sampling rate of the receiver. Sub‐Nyquist radar systems operate at lower sampling rates and hence reduce the hardware cost and complexity. A sub‐Nyquist radar system uses the knowledge
Satish Mulleti +3 more
doaj +1 more source
Wideband spectrum sensing based on modulated wideband converter with nested array
IET Communications, 2021 Several spectrum sensing systems based on sub‐Nyquist sampling have been extensively studied to deal with difficulties of traditional wideband spectrum sensing in cognitive radio (CR) networks.
Qiuyue Li, Zhi Li, Jian Li
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Deep Unfolded Recovery of Sub-Nyquist Sampled Ultrasound Images
IEEE Transactions on Ultrasonics, Ferroelectrics, and Frequency Control, 2021 The most common technique for generating B-mode ultrasound (US) images is delay and sum (DAS) beamforming, where the signals received at the transducer array are sampled before an appropriate delay is applied. This necessitates sampling rates exceeding the Nyquist rate and the use of a large number of antenna elements to ensure sufficient image quality.
Alon Mamistvalov, Yonina C. Eldar
openaire +3 more sources
Fronthaul Optical Links Using Sub-Nyquist Sampling Rate ADC for B5G/6G Sub-THz Ma-MIMO Beamforming
IEEE Access, 2022 This paper details fronthaul optical links using sub-Nyquist sampling rate analog-to-digital converters (ADCs) for Beyond fifth generation (B5G) and 6G sub-THz massive multiple-input multiple-output (Ma-MIMO) beamforming.
Pin-Hsuan Ting +5 more
doaj +1 more source