Results 31 to 40 of about 18,005 (249)
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 processing with the modulated wideband converter [PDF]
2010 IEEE International Conference on Acoustics, Speech and Signal Processing, 2010 Sub-Nyquist systems capture the signal information in a different fashion than uniform high-rate samples. Consequently, digital processing, which is the prime reason for leaving the analog domain, becomes challenging. We propose a digital algorithm that translates samples obtained by the modulated wideband converter, a recent sub-Nyquist system, to the
Moshe Mishali +2 more
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Compressive Detection Using Sub-Nyquist Radars for Sparse Signals
International Journal of Antennas and Propagation, 2016 This paper investigates the compression detection problem using sub-Nyquist radars, which is well suited to the scenario of high bandwidths in real-time processing because it would significantly reduce the computational burden and save power consumption ...
Ying Sun +5 more
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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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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 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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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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Testbed for Sub-Nyquist Wideband Spectrum Monitoring
Revista Ingenierías Universidad de Medellín, 2019 Radioelectric spectrum management is a concern for today’s world, mainly due to the misuse that has been given to this resource through the years, especially on the UHF band.
Juan Felipe Medina Lee +3 more
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