Comparison of Tropospheric Horizontal Gradients Modeling Methods in LEO Constellation Augmented GNSS Precise Point Positioning

With the improvement in GNSS data processing accuracies, the selection of optimal asymmetric troposphere delay modeling method becomes essential, especially during the period of severe weather events and with the development of low Earth orbit (LEO) constellation augmented GNSS (LeGNSS). In this res...

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Veröffentlicht in:	IEEE journal of selected topics in applied earth observations and remote sensing 2025, Vol.18, p.3011-3024
Hauptverfasser:	Zhang, Xinyu, Ding, Wenwu, Qu, Xiaochuan, Xu, Hongjin, Tan, Xuanzhao, Yuan, Yunbin
Format:	Artikel
Sprache:	eng
Schlagworte:	Accuracy Atmospheric modeling Data models Delays Global navigation satellite system Horizontal gradients low Earth orbit (LEO) constellation augmented GNSS (LeGNSS) Meteorology Orbits precise point positioning (PPP) Satellites Spatial resolution Terrestrial atmosphere zenith troposphere delay (ZTD)
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