Results 21 to 30 of about 1,475,822 (289)
IEEE Open Journal of Signal Processing, 2021 Quadrature spatial modulation (QSM) isa recently proposed multiple-input multiple-output (MIMO) wireless transmission paradigm that has garnered considerable research interest owing to its relatively high spectral efficiency. QSM essentially enhances the
Malek M. Alsmadi +3 more
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Optimised limit for polarimetric calibration of fully polarised SAR systems
Electronics Letters, 2016 The optimised limit for polarimetric calibration of fully polarised synthetic aperture radar systems is derived by establishing an error model as a function of cross‐talk, channel imbalance and system noise. Compared with noise equivalent sigma zero, the
Jie Chen, Wei Guo, Zhuo Li, Wei Liu
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Elevation Multi-Channel Imbalance Calibration Method of Digital Beamforming Synthetic Aperture Radar
Remote Sensing, 2022 The digital beamforming synthetic aperture radar (DBF-SAR) is proposed by scholars as a promising solution to overcome the constraint of the minimum antenna area of the traditional single-channel SAR to achieve high resolution and wide swath (HRWS) by ...
Hao Chen +3 more
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Channel flow over large cube roughness: a direct numerical simulation study [PDF]
, 2010 Computations of channel flow with rough walls comprising staggered arrays of cubes having various plan area densities are presented and discussed. The cube height h is12.5% of the channel half-depth and Reynolds numbers (u? h/?) are typically around 700 –
IAN P. CASTRO +3 more
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A KATP channel opener inhibited myocardial reperfusion action potential shortening and arrhythmias [PDF]
, 2001 Low concentrations of certain K<sub>ATP</sub> channel openers have been reported to exert a moderate inhibitory effect on arrhythmias during post-ischaemic early myocardial reperfusion, but the accompanying effects on the time course of ...
Northover, B.J. +5 more
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Imbalance and dysfunction of transient receptor potential channels contribute to the pathogenesis of hypertension [PDF]
Science China Life Sciences, 2014 Intracellular Ca(2+) homeostasis is essential for vascular function and blood pressure regulation. Because of their unique roles in regulating intracellular Ca(2+) concentration and vascular function, a novel class of non-selective cation channels, called transient receptor potential (TRP) channels, have emerged at the frontier of hypertension research.
Liu, DaoYan +2 more
openaire +2 more sources
, 2010 An investigation into history documentary production processes - How Britain Bridges the World - 60 minute documentary - The History Channel The documentary narrative and content was developed by Senior Lecturer Fiona Graham and explored the engineering
Title Role Productions, Manchester +2 more
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Sensors, 2022 Channel phase calibration is a crucial issue in high resolution and wide swath (HRWS) imagery with azimuth multi-channel synthetic aperture radar (SAR) systems.
Man Zhang +3 more
doaj +1 more source
Correction and compensation of I/Q imbalance and multipath channel [PDF]
, 2015 This thesis presents adaptive schemes in overcoming signal distortion, caused by l/Q imbalance and multipath propagation, for OFDM and single carrier modulation.
Khandker Nadya Haq (23294473)
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Channel Compensation for Reciprocal TDD Massive MIMO-OFDM With IQ Imbalance
IEEE Wireless Communications Letters, 2017 Massive multiple-input multiple-output (MIMO) orthogonal frequency division multiplexing (OFDM) systems are sensitive to in-phase and quadrature (IQ) imbalances, which destroys the reciprocity of time-division duplex (TDD) uplink/downlink channels with potentially large performance degradation. In this letter, we investigate the compensation of channel
Yan Liang 0002 +4 more
openaire +2 more sources