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Estimation of total electron content (TEC) using spaceborne GPS measurements
The Journal of the Astronautical Sciences, 2008TerraSAR-X (TSX), a high-resolution interferometric Synthetic Aperture Radar (SAR) mission from DLR (German Aerospace Center, Deutsches Zentrum fur Luft-und Raumfahrt), was successfully launched into orbit on June 15, 2007. It includes a dual-frequency GPS receiver called IGOR (Integrated GPS Occultation Receiver), which is a heritage NASA/JPL ...
Key-Rok Choi, E. Glenn Lightsey
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TEC (Total Electron Content) Models
1989Abstract : Models of the ionosphere were developed and utilized to evaluate Total Electron Content for various specified transmission paths from the ground into space. Keywords: Ionosphere; Total electron content.
null Peter +3 more
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Determination of total electron content (TEC) due to location in Malaysia
2013 IEEE 4th Control and System Graduate Research Colloquium, 2013This paper studied the TEC values for Malaysia regions, a few location of GPS receiver stations were chosen.. The transmitted GPS signals must propagate through the ionosphere layer at the atmosphere before reaching the surface. The ionosphere layer can cause the effect of the GPS due to the electron density at this layer.
Norsuzila Ya'acob +3 more
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Forecasting of ionospheric vertical total electron content (TEC) using LSTM networks
2017 International Conference on Machine Learning and Cybernetics (ICMLC), 2017Ionosphere is an important space environment near the earth. Its disturbance would result in severe propagation effects to radio information system, thus causing bad influences on communication, navigation, radar and so on. The total electron content (TEC) is an important parameter to present the disturbance of ionosphere, so TEC forecast is very ...
Wenqing Sun +6 more
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New receiver bias calculation for total electron content (TEC) in Bangkok, Thailand
2018 15th International Conference on Electrical Engineering/Electronics, Computer, Telecommunications and Information Technology (ECTI-CON), 2018Ionospheric delay is an important parameter which affects the positioning accuracy of Global Navigation Satellite System (GNSS). It can be analyzed from the total electron content (TEC) in the signal propagation path, computed from the code and carrier phase of at least dual-frequency GNSS signals.
Napat Tongkasem +2 more
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Increases of equatorial total electron content (TEC) during magnetic storms
Journal of Atmospheric and Terrestrial Physics, 1976Abstract This paper is a report on the analysis of equatorial electron content, TEC, during magnetic storms. Storms between 1969 and 1972 have been examined as part of an on-going study of TEC morphology during magnetically disturbed days. The published magnetic K p indices and TEC data from the Legon observatory have been employed.
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Radio Science, 2005
Data collected from Fast On‐Orbit Recording of Transient Events (FORTE) satellite–received Los Alamos Portable Pulser (LAPP) signals during 1997–2002 are used to derive the total electron content (TEC) at Los Alamos, New Mexico. The LAPP‐derived TECs at Los Alamos are analyzed for diurnal, seasonal, interannual, and 27‐day solar cycle variations ...
Zhen Huang, Robert Roussel‐Dupré
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Data collected from Fast On‐Orbit Recording of Transient Events (FORTE) satellite–received Los Alamos Portable Pulser (LAPP) signals during 1997–2002 are used to derive the total electron content (TEC) at Los Alamos, New Mexico. The LAPP‐derived TECs at Los Alamos are analyzed for diurnal, seasonal, interannual, and 27‐day solar cycle variations ...
Zhen Huang, Robert Roussel‐Dupré
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Calibration errors in determining slant Total Electron Content (TEC) from multi-GNSS data
Advances in Space Research, 2019Abstract The global navigation satellite system (GNSS) is presently a powerful tool for sensing the Earth's ionosphere. For this purpose, the ionospheric measurements (IMs), which are by definition slant total electron content biased by satellite and receiver differential code biases (DCBs), need to be first extracted from GNSS data and then used as ...
Wei Li +3 more
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Investigation of the annual solar eclipse by using Total Electron Content (TEC) measurements
2011 IEEE Symposium on Wireless Technology and Applications (ISWTA), 2011This research investigates the ionosphere response to the annual solar eclipse on 26th January 2009 over Indonesia and Singapore. During solar eclipse, ionosphere will be affect due to the partial or complete obstruction of solar emission. It makes the number of electrons and ions decreases.
Norsuzila Ya'acob +5 more
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A statistical comparison of vertical Total Electron Content (TEC) from three ionospheric models
2008[1] Total electron content (TEC) exhibits significant variations in both space and time depending upon latitude, longitude, solar cycle, UTC, and season; these variations can have potentially negative effects on communication and navigation systems. Recently, three models have provided accurate results in reconstructing and/or calculating real-time (or
Jones, McArthur +2 more
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