Results 41 to 50 of about 1,805,271 (277)
The Intriguing Structure of Stripes in GRACE Geopotential Models
Remote Sensing, 2021 Geopotential models derived from Gravity Recovery and Climate Experiment (GRACE) mission measurements are significantly obscured by the presence of a systematic artifact, known as longitudinal stripes.
Spiros Pagiatakis, Athina Peidou
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Sub-Nyquist Radar: Principles and Prototypes
CoRR, 2018 In the past few years, new approaches to radar signal processing have been introduced which allow the radar to perform signal detection and parameter estimation from much fewer measurements than that required by Nyquist sampling. These systems - referred to as sub-Nyquist radars - model the received signal as having finite rate of innovation and employ
Kumar Vijay Mishra, Yonina C. Eldar
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A Constrained Random Demodulator for Sub-Nyquist Sampling [PDF]
IEEE Transactions on Signal Processing, 2013 Preprint of a journal paper accepted for publication in: IEEE Trans. Signal Processing, 2013 (copyright has been transferred to IEEE)
Andrew Harms +2 more
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SubNyquist Frequency Efficient Audio Compression
Al-Khawarizmi Engineering Journal, 2012 This paper presents the application of a framework of fast and efficient compressive sampling based on the concept of random sampling of sparse Audio signal. It provides four important features. (i) It is universal with a variety of sparse signals.
Ahmed A. Hashim
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A Design of Two Sub-Stage Square-Root Nyquist Matched Filter
IEEE Access, 2018 A pair of matched filters whose cascade response satisfies the Nyquist criterion can guarantee the inter-symbol interference (ISI)-free transmission for band-limited communication systems.
Ruwu Xiao +4 more
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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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Impedance Spectroscopy Analysis of Perovskite Solar Cell Stability
Energies, 2023 The aim of this work is to investigate the degradation of perovskite solar cells (PSCs) by means of impedance spectroscopy, a highly sensitive characterization technique used to establish the electrical response of a device in a nondestructive manner. In
Ilaria Matacena +12 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
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Analysis and Uses of the Nyquist Stability Criterion
, 2023 reservedIl criterio di stabilità di Nyquist è stato sviluppato da Harry Nyquist negli anni '30 del secolo scorso ed è uno dei pilastri fondamentali nell'analisi e nel progetto dei sistemi di controllo.
PRAVATO, ENRICO
core
Power Scalable Angle of Arrival Estimation Using Pilot Design With Orthogonal Subsequences
IEEE Open Journal of the Communications Society, 2021 Energy efficient array processing is critical to implement feasible solutions for directional communication in a mmWave channel. MmWave channels are highly susceptible to blockage and require frequent angle of arrival (AoA) estimation.
Mahbuba S. Ullah +2 more
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