A method to ingest GPS-TEC into the NeQuick ionospheric model
نویسندگان
چکیده
منابع مشابه
Ionospheric Correction Based on Ingestion of Global Ionospheric Maps into the NeQuick 2 Model
The global ionospheric maps (GIMs), generated by Jet Propulsion Laboratory (JPL) and Center for Orbit Determination in Europe (CODE) during a period over 13 years, have been adopted as the primary source of data to provide global ionospheric correction for possible single frequency positioning applications. The investigation aims to assess the performance of new NeQuick model, NeQuick 2, in pre...
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The satellite-to-ground communications are influenced by ionospheric plasma which varies depending on solar and geomagnetic activities as well as regions and local times. With the expansion of use of the space, continuous monitoring of the ionospheric plasma has become an important issue. In Global Positioning System (GPS), the ionospheric delay, which is proportional to ionospheric total elect...
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The ionosphere is the main error source in GNSS measurements and in extreme cases can degrade significantly the positioning with errors exceeding 100 m; therefore modelling and predicting this type of error is crucial and critical. The ionospheric effect can be reduced using different techniques such as dual-frequency receiver or suitable augmentation system (DGPS, SBAS); the aforesaid approach...
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A new method of is being developed to estimate the ionosphere’s 3-dimensional electron density distribution based on GPS slant TEC data. The goal of this effort is to develop a generalized parametric ionospheric model that is amenable to data assimilation using powerful nonlinear least-squares batch filtering techniques and related techniques. In addition to assimilating GPS TEC data, this meth...
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This paper essentially deals with the effects of equatorial ionization anomaly gradient on space-based navigation systems like GPS. The equatorial region of the ionosphere, which extends about ±30dip about the magnetic equator, is characterized by a steep latitudinal gradient, not only in the maximum ionization but also in the total electron content (TEC), through a major part of the day. This ...
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ژورنال
عنوان ژورنال: Radio Science
سال: 2007
ISSN: 0048-6604
DOI: 10.1029/2006rs003521