Accurate estimation of the ionosphere is essential for reliable Global Navigation Satellite System (GNSS) positioning, timing, and space weather applications. A key challenge lies in converting slant ...
The ionosphere -- the region of geospace spanning from 60 to 1000 kilometers above the Earth -- impairs the propagation of radio signals from global navigation satellite systems (GNSS) with its ...
Most operational systems still use a single-layer ionosphere model with a fixed effective height, despite the ionosphere’s strong spatial, temporal, and solar-driven variability. This simplification ...
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