Results 31 to 40 of about 7,448,970 (353)
The effect of initial and prior models on phase tensor inversion of distorted magnetotelluric data
Earth, Planets and Space, 2022 Magnetotelluric (MT) data are often distorted by near-surface small-scale lateral heterogeneities. Inverting distorted MT data may produce artifacts or false anomalies, leading to unreliable interpretation.
T. Rung-Arunwan +2 more
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Effect of Phase-Encoding Reduction on Geometric Distortion and BOLD Signal Changes in fMRI [PDF]
Iranian Journal of Medical Physics, 2013 Introduction Echo-planar imaging (EPI) is a group of fast data acquisition methods commonly used in fMRI studies. It acquires multiple image lines in k-space after a single excitation, which leads to a very short scan time.
Golestan karami +3 more
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Amplitude Modulation to Phase Modulation Conversion in Photonic Bandpass Sampling Link
IEEE Photonics Journal, 2021 The photonic bandpass sampling has been proved to be potential in multi-carrier communication, frequency-agile coherent radar, compressive sensing, etc.
Shanhong Guan +4 more
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Phase Corrections With Adaptive Optics and Gerchberg-Saxton Iteration: A Comparison
IEEE Access, 2019 Free space optical communications technique is the promising alternative for the access/fronthual networks to relieve the traffic congestion. The turbulence in the free space channel, however, could cause the phase distortions in optical signals, thus ...
Ming Li
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IEEE Access, 2020 The open-switch fault of three-phase voltage source rectifiers (VSR) may lead to ac current distortion. In the past decade, some current-based fault diagnosis methods have been proposed, which directly used the phenomenon of current distortion but lacked
Chunsong Sui, Yigang He, Mingyun Chen
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Journal of Mechatronics, Electrical Power, and Vehicular Technology, 2023 The increasing use of power electronics in various sectors leads to harmonic distortion in electric power systems, affecting power quality and equipment longevity.
Langlang Gumilar +4 more
doaj +1 more source
Compensation for phase distortions in nonlinear media by phase conjugation [PDF]
Optics Letters, 1980 We demonstrate theoretically that the distortion-correction property of phase-conjugate beams propagating in reverse through aberrating media is also operative when the indices of refraction of the media depend on the intensity. A necessary condition is that the phase-conjugate mirror that generates the reflected beam possess a unity (magnitude ...
D M, Pepper, A, Yariv
openaire +2 more sources
SPEED DEPENDENCE OF ACOUSTIC VIBRATION PROPAGATION FROM THE FERRITIC GRAIN SIZE IN LOW-CARBON STEEL
Nauka ta progres transportu, 2015 Purpose. It is determining the nature of the ferrite grain size influence of low-carbon alloy steel on the speed propagation of acoustic vibrations. Methodology. The material for the research served a steel sheet of thickness 1.4 mm. Steel type H18T1 had
I. A. Vakulenko +3 more
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Distortion correction of diffusion weighted MRI without reverse phase-encoding scans or field-maps
bioRxiv, 2020 Diffusion magnetic resonance images may suffer from geometric distortions due to susceptibility induced off resonance fields, which cause geometric mismatch with anatomical images and ultimately affect subsequent quantification of microstructural or ...
K. Schilling +14 more
semanticscholar +1 more source
Analytical model for calculating the nonlinear distortion in silicon-based electro-optic Mach-Zehnder modulators [PDF]
, 2013 In this study, an analytical model for calculating the nonlinear harmonic/intermodulation distortion for RF signals in silicon-based electro-optic modulators is investigated by considering the nonlinearity on the effective index change curve with the ...
Herrera Llorente, Javier +13 more
core +1 more source