Results 81 to 90 of about 7,904 (219)

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

GNSS signals acquired by a Software Defined Radio (SDR) system subject to ionospheric scintillations

, 2023
Emanuele Pica, Alex Minetto, Fabio Dovis, Claudio Cesaroni, Iman Ebrahimi Mehr   +4 more
openalex   +1 more source

Aberrations of radio signals traversing the auroral ionosphere interim report no. 1, 1 aug. 1964 - 31 jan. 1965 [PDF]

Radio star signal measurement beneath auroral ionosphere for satellite ...
Premouw, E. J.
core   +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

Regionally based alarm index to mitigate ionospheric scintillation effects for GNSS receivers [PDF]

, 2015
Rajesh Tiwari, H.J. Strangeways
openalex   +1 more source

Wave propagation and earth satellite radio emission studies [PDF]

Radio propagation studies of the ionosphere using satellite radio beacons are described. The ionosphere is known as a dispersive, inhomogeneous, irregular and sometimes even nonlinear medium. After traversing through the ionosphere the radio signal bears
Flaherty, B. J., Liu, C. H., Yeh, K. C.
core   +1 more source

An Alternative Approach for Pseudorange Variance Estimation Under Scintillation Environments Using Markov‐Rao‐Blackwellized Particle Filtering

IET Radar, Sonar & Navigation
Ionospheric scintillations, arising from variations in phase/amplitude of radio signals traversing the ionosphere, pose significant challenges to Global Navigation Satellite System (GNSS) positioning, particularly in low‐latitude regions.
Paulo Silva, Marcelo G. S. Bruno, Victor di Santis, Alison Moraes, Jonas Sousasantos, Leonardo Marini‐Pereira   +5 more
doaj   +1 more source

Ionospheric scintillation detection over Iran, based on GPS observations [PDF]

, 2018
Sahar Sobhkhiz miandehi, Mohammad Mehdi Alizadeh Elizei   +1 more
openalex   +1 more source

A decametric wavelength radio telescope for interplanetary scintillation observations [PDF]

A phased array, electrically steerable radio telescope (with a total collecting area of 18 acres), constructed for the purpose of remotely sensing electron density irregularity structure in the solar wind, is presented.
Cronyn, W. M., Shawhan, S. D.
core   +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