Results 31 to 40 of about 164,155 (331)
Scintillation of Partially Coherent Light in Time Varying Complex Media [PDF]
, 2022 We present a theory for wave scintillation in the situation with a time-dependent partially coherent source and a time-dependent randomly heterogeneous medium. Our objective is to understand how the scintillation index of the measured intensity depends on the source and medium parameters.
arxiv +1 more source
Multi-frequency GNSS robust carrier tracking for ionospheric scintillation mitigation
Journal of Space Weather and Space Climate, 2017 Ionospheric scintillation is the physical phenomena affecting radio waves propagating from the space through the ionosphere to earth. The signal distortion induced by scintillation can pose a major threat to some GNSS application. Scintillation is one of
Vilà-Valls Jordi +2 more
doaj +1 more source
Mitigating the Scintillation Effect on GNSS Signals Using MP and ROTI
Remote Sensing, 2022 Ionospheric scintillation is one of the main error sources of Global Navigation Satellite System (GNSS) positioning. The presence of scintillation may result in cycle slips, measurement errors or even losses of lock on satellites, eventually leading to ...
Chendong Li +4 more
doaj +1 more source
Frontiers in Astronomy and Space Sciences, 2018 Dynamical nightside auroral structures are often observed by the all sky imagers (ASI) at the Chinese Yellow River Station (CYRS) at Ny-Ålesund, Svalbard, located in the polar cap near poleward edge of the nightside auroral oval.
Shishir Priyadarshi +5 more
doaj +1 more source
Advanced Energy Materials, Volume 13, Issue 2, January 13, 2023., 2023 Using in situ X‐ray tomography, the phase transformation and microstructural evolution of a copper sulfide cathode in solid‐state batteries is 3D visualized and characterized. Copper inclusions generate after phase transformation and the electrode cracks have a strong preferential orientation within the x‐y plane of the cell.
Zhenggang Zhang +8 more
wiley +1 more source
Observations and modeling of scintillation in the vicinity of a polar cap patch
Journal of Space Weather and Space Climate, 2022 Small-scale ionospheric plasma structures can cause scintillation in radio signals passing through the ionosphere. The relationship between the scintillated signal and how plasma structuring develops is complex.
Lamarche Leslie J. +2 more
doaj +1 more source
A general framework for scintillation in nanophotonics [PDF]
, 2021 Bombardment of materials by high-energy particles (e.g., electrons, nuclei, X- and $\gamma$-ray photons) often leads to light emission, known generally as scintillation. Scintillation is ubiquitous and enjoys widespread applications in many areas such as medical imaging, X-ray non-destructive inspection, night vision, electron microscopy, and high ...
arxiv +1 more source
Interstellar scintillation of an extreme scintillator: PKS B1144−379 [PDF]
Monthly Notices of the Royal Astronomical Society, 2020 ABSTRACT The University of Tasmania Ceduna radio telescope has been used to investigate rapid variability in the radio flux density of the BL Lac object PKS B1144−379 at 6.7 GHz. High-cadence monitoring of this extreme scintillator was carried out over a period of approximately 9 yr, between 2003 and 2011.
Stanislav S. Shabala +6 more
openaire +4 more sources
IEEE Access, 2019 The spaceborne synthetic aperture radar (SAR) system working at P-band, is vulnerable to the ionospheric effect. The ionospheric scintillation will introduce random phase fluctuations into the SAR signal and deteriorate the imaging performance.
Lei Yu +4 more
doaj +1 more source
Space Weather, 2021 The temporal change in height of a specific electron density can be used as a proxy for vertical plasma drift (PVPD) at the magnetic equator. The use of PVPDs as a predictor of low‐latitude ionospheric scintillation during the subsequent evening has ...
L. D. Nugent, S. Elvidge, M. J. Angling
doaj +1 more source