Results 81 to 90 of about 71,360 (201)

Global Ionospheric Scintillation During the May 2024 Super Geomagnetic Storm Observed by TianMu-1 GNSS-R

IEEE Journal of Selected Topics in Applied Earth Observations and Remote Sensing
Global navigation satellite system reflectometry (GNSS-R) provides broad oceanic coverage and serves as a crucial tool for monitoring ionospheric scintillation. However, current GNSS-R constellations, such as cyclone GNSS (CYGNSS), are constrained by low
Linghuo Jian, Xiaodong Ren, Yingchuan Yang, Xuan Le, Hang Liu, Yu Guo, Xiaohong Zhang   +6 more
doaj   +1 more source

GNSS ionospheric scintillation studies in Singapore

, 2015
Ionospheric scintillation has been a challenge for Global Navigation Satellites System (GNSS) application especially in equatorial region. Ionosphere in around equatorial region is known to have unique characteristic.
Dhimas Sentanu Murti
core   +1 more source

Spatial Analysis of GNSS Measurements from an Equatorial Ionospheric Scintillation Monitoring Receiver (ISMR) Network

, 2014
editorial reviewedThe ionosphere has always been a major limitation for GNSS positioning applications. Free electrons in the ionosphere perturb the propagation of GNSS radio signals involving both refraction and diffraction effects. In particular, small-
Lonchay, Matthieu, Cornet, Yves, Warnant, René, Wautelet, Gilles, Aquino, Marcio   +4 more
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Characteristics of ionospheric scintillation climatology over Indian low-latitude region during the 24th solar maximum period

Geodesy and Geodynamics, 2019
The amplitude and phase of L-band satellite signals are fluctuated randomly due to small scale electron density irregularity structures in the ionosphere which result in fleeting variations, known as ‘ionospheric scintillations’.
K. Sahithi, M. Sridhar, Sarat K. Kotamraju, K.Ch. Sri Kavya, G. Sivavaraprasad, D.Venkata Ratnam, Ch. Deepthi   +6 more
doaj   +1 more source

The Performance of DIXSG on Characterizing Global and Regional Ionospheric Disturbances Utilizing Geodetic Receiver Network‐A Case Study

Space Weather
As the 25th solar cycle enters a highly active phase, the resulting ionospheric irregularities induce disturbances in signals of Global Navigation Satellite System (GNSS), significantly disrupting its global stable positioning, navigation, and timing ...
Dongsheng Zhao, Xueli Zhang, Peicheng Zhang, Hao Liu, Kefei Zhang, Wang Li, Andong Hu, Longjiang Li, Shuanglei Cui, Yuhao Hou, Craig M. Hancock, Andrzej Krankowski   +11 more
doaj   +1 more source

Equatorial Ionospheric Scintillation Measurement in Advanced Land Observing Satellite Phased Array-Type L-Band Synthetic Aperture Radar Observations

Engineering
Amplitude stripes imposed by ionospheric scintillation have been frequently observed in many of the equatorial nighttime acquisitions of the Advanced Land Observing Satellite (ALOS) Phased Array-type L-band Synthetic Aperture Radar (PALSAR). This type of
Yifei Ji, Zhen Dong, Yongsheng Zhang, Feixiang Tang, Wenfei Mao, Haisheng Zhao, Zhengwen Xu, Qingjun Zhang, Bingji Zhao, Heli Gao   +9 more
doaj   +1 more source

AI-Driven Modeling of the S4 Index for UHF Satellite Communication

IEEE Access
Ionospheric scintillation significantly affects satellite communication links, particularly in low-latitude regions such as Brazil. However, the lack of observational S4 data in the UHF band, mainly available from Global Navigation Satellite System (GNSS)
L. R. Reis, R. A. Borges, A. A. Ferreira, C. Cappelletti   +3 more
doaj   +1 more source

ISNet: Decomposed Dynamic Spatio‐Temporal Neural Network for Ionospheric Scintillation Forecasts

Space Weather
Accurate prediction of ionospheric scintillation is essential for ensuring the reliability of spaceborne and ground‐based radio wave technology infrastructures, including but not limited to navigation and communication systems.
Zhixu Gao, Yanhong Chen, Xianzhi Ao, Fulu Yue, Hong Chen, Hao Deng, Bingxian Luo, Xin Wang, Tianjiao Yuan   +8 more
doaj   +1 more source

Accuracy assessment of Precise Point Positioning with multi-constellation GNSS data under ionospheric scintillation effects

Journal of Space Weather and Space Climate, 2018
GPS and GLONASS are currently the Global Navigation Satellite Systems (GNSS) with full operational capacity. The integration of GPS, GLONASS and future GNSS constellations can provide better accuracy and more reliability in geodetic positioning, in ...
Marques Haroldo Antonio, Marques Heloísa Alves Silva, Aquino Marcio, Veettil Sreeja Vadakke, Monico João Francisco Galera   +4 more
doaj   +1 more source

Ionospheric Scintillation Modelling [PDF]

, 1981
153-159The phenomenon of ionospheric scintillations has long been observed by radio astronomers and physicists. The observations have provided valuable information towards the (qualitative) morphology of the phenomenon.
Reddy, B M, Pasricha, P K
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