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- Title
Ionosphere Total Electron Content Modeling and Multi-Type Differential Code Bias Estimation Using Multi-Mode and Multi-Frequency Global Navigation Satellite System Observations.
- Authors
Wang, Qisheng; Zhu, Jiaru; Hu, Feng
- Abstract
With the rapid development of multi-mode and multi-frequency GNSSs (including GPS, GLONASS, BDS, Galileo, and QZSS), more observations for research on ionosphere can be provided. The Global Ionospheric Map (GIM) products are generated based on the observation of multi-mode and multi-frequency GNSSs, and comparisons with other GIMs provided by the ionosphere analysis centers are provided in this paper. Taking the CODE (Center of Orbit Determination in Europe) GIM as a reference during 30 days in January 2019, for the GIMs from JPL (Jet Puls Laboratory), UPC (Technical University of Catalonia), ESA (European Space Agency), WHU (Wuhan University), CAS (Chinese Academy of Sciences), and MMG (The multi-mode and multi-frequency GNSS observations used in this paper), the mean bias with respect to CODE products is 1.87, 1.30, −0.10, 0.01, −0.02, and −0.71 TECu, and the RMS is 2.12, 2.00, 1.33, 0.88, 0.88, and 1.30 TECu, respectively. The estimated multi-type DCB is also in good agreement with the DCB products provided by the MGEX.
- Subjects
GLOBAL Positioning System; CHINESE Academy of Sciences (Beijing, China); EUROPEAN Space Agency; ESTIMATION bias; GALILEI, Galileo, 1564-1642; IONOSPHERE; ORBIT determination; PRODUCT coding
- Publication
Remote Sensing, 2023, Vol 15, Issue 18, p4607
- ISSN
2072-4292
- Publication type
Article
- DOI
10.3390/rs15184607