Scintillation properties of crystals based on ternary bromides of calcium and alkali metals activated with europium
Sign Up to like & getrecommendations! Published in 2017 at "Crystal Research and Technology"
DOI: 10.1002/crat.201600404
Abstract: Single crystals of new scintillation materials ACaBr3:Eu2+ (A = K, Rb) were grown using the Bridgman–Stockbarger method. The luminescence spectra of RbCa1-xEuxBr3 crystals include a single band with a maximum which position shifts from 433… read more here.
Keywords: ternary bromides; crystals based; scintillation properties; scintillation ... See more keywords
Synchronized high-speed scintillation imaging of proton beams, generated by a gantry-mounted synchrocyclotron, on a pulse-by-pulse basis.
Sign Up to like & getrecommendations! Published in 2022 at "Medical physics"
DOI: 10.1002/mp.15826
Abstract: BACKGROUND With the emergence of more complex and novel proton delivery techniques, there is a need for quality assurance (QA) tools with high spatiotemporal resolution to conveniently measure the spatial and temporal properties of the… read more here.
Keywords: scintillation; high speed; pulse pulse; scintillation imaging ... See more keywords
Methodology to estimate ionospheric scintillation risk maps and their contribution to position dilution of precision on the ground
Sign Up to like & getrecommendations! Published in 2020 at "Journal of Geodesy"
DOI: 10.1007/s00190-020-01344-0
Abstract: Satellite-based communications, navigation systems and many scientific instruments rely on observations of trans-ionospheric signals. The quality of these signals can be deteriorated by ionospheric scintillation which can have detrimental effects on the mentioned applications. Therefore,… read more here.
Keywords: methodology; ground; ionospheric scintillation; scintillation ... See more keywords
Mitigation of ionospheric scintillation effects on GNSS precise point positioning (PPP) at low latitudes
Sign Up to like & getrecommendations! Published in 2020 at "Journal of Geodesy"
DOI: 10.1007/s00190-020-01345-z
Abstract: Global navigation satellite systems (GNSS) underpin a number of modern life activities, including applications demanding positioning accuracy at the level of centimetres, such as precision agriculture, offshore operations and mining, to name a few. Precise… read more here.
Keywords: positioning ppp; precise point; accuracy; scintillation ... See more keywords
Tuning a Kalman filter carrier tracking algorithm in the presence of ionospheric scintillation
Sign Up to like & getrecommendations! Published in 2017 at "GPS Solutions"
DOI: 10.1007/s10291-016-0597-y
Abstract: Strong ionospheric electron content gradients may lead to fast and unpredictable fluctuations in the phase and amplitude of the signals from Global Navigation Satellite Systems (GNSS). This phenomenon, known as ionospheric scintillation, is capable of… read more here.
Keywords: ionospheric scintillation; kalman filter; scintillation; carrier tracking ... See more keywords
SBAS-derived TEC maps: a new tool to forecast the spatial maps of maximum probable scintillation index over India
Sign Up to like & getrecommendations! Published in 2017 at "GPS Solutions"
DOI: 10.1007/s10291-017-0625-6
Abstract: With the increase in the use of satellite-based navigation services, the forecasting of L band scintillation has turned out to be of paramount importance as it affects their accuracy and availability. Forecasting the time of… read more here.
Keywords: maximum probable; scintillation index; probable scintillation; scintillation ... See more keywords
Investigation of ionospheric scintillation effects on BDS precise point positioning at low-latitude regions
Sign Up to like & getrecommendations! Published in 2018 at "GPS Solutions"
DOI: 10.1007/s10291-018-0728-8
Abstract: We present a study on the effects of ionospheric scintillation on BeiDou Navigation Satellite System (BDS) precise point positioning (PPP) at low-latitude regions. The analysis was carried out using BDS data collected by a newly… read more here.
Keywords: low latitude; bds precise; ionospheric scintillation; precise point ... See more keywords
Ionospheric scintillation intensity fading characteristics and GPS receiver tracking performance at low latitudes
Sign Up to like & getrecommendations! Published in 2019 at "GPS Solutions"
DOI: 10.1007/s10291-019-0835-1
Abstract: Ionospheric scintillation refers to rapid fluctuations in signal amplitude/phase when radio signals propagate through irregularities in the ionosphere. The occurrence of ionospheric scintillation can severely degrade the Global Navigation Satellite System (GNSS) receiver tracking loop… read more here.
Keywords: intensity fading; ionospheric scintillation; scintillation; receiver tracking ... See more keywords
Better thresholds and weights to improve GNSS PPP under ionospheric scintillation activity at low latitudes
Sign Up to like & getrecommendations! Published in 2019 at "GPS Solutions"
DOI: 10.1007/s10291-019-0924-1
Abstract: Ionospheric scintillation can degrade the global navigation satellite system (GNSS) measurement quality and even result in loss of signal lock, thus degrading the accuracy and reliability of GNSS precise point positioning (PPP). To reduce the… read more here.
Keywords: strategy; ionospheric scintillation; gnss ppp; scintillation ... See more keywords
Ionospheric scintillation forecasting model based on NN-PSO technique
Sign Up to like & getrecommendations! Published in 2017 at "Astrophysics and Space Science"
DOI: 10.1007/s10509-017-3144-6
Abstract: The forecasting and modeling of ionospheric scintillation effects are crucial for precise satellite positioning and navigation applications. In this paper, a Neural Network model, trained using Particle Swarm Optimization (PSO) algorithm, has been implemented for… read more here.
Keywords: ionospheric scintillation; scintillation; pso; scintillation forecasting ... See more keywords
Study of equatorial plasma bubbles using all sky imager and scintillation technique from Kolhapur station: a case study
Sign Up to like & getrecommendations! Published in 2018 at "Astrophysics and Space Science"
DOI: 10.1007/s10509-018-3303-4
Abstract: The nightglow observations of OI 630.0 nm emission carried out from low latitude station Kolhapur using All Sky Imager (ASI) with 140∘$140^{\circ}$ field of view (FOV) for the month of April 2011 are used. The… read more here.
Keywords: using sky; sky imager; study; scintillation ... See more keywords