Y
Yanju Chai
Researcher at Chinese Academy of Sciences
Publications - 5
Citations - 151
Yanju Chai is an academic researcher from Chinese Academy of Sciences. The author has contributed to research in topics: GNSS applications & Global Positioning System. The author has an hindex of 3, co-authored 5 publications receiving 114 citations.
Papers
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Journal ArticleDOI
Refining the Klobuchar ionospheric coefficients based on GPS observations
TL;DR: Primary results demonstrate that the refined Klobuchar-Self coefficients developed may provide better ionospheric delay corrections for single-frequency GPS receivers and improve standard single point positioning accuracies.
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New versions of the BDS/GNSS zenith tropospheric delay model IGGtrop
TL;DR: In this article, new versions of the global zenith tropospheric delay (ZTD) model IGGtrop are developed through further investigation on the spatial and temporal characteristics of global ZTD.
Journal ArticleDOI
Assessment of Three Tropospheric Delay Models (IGGtrop, EGNOS and UNB3m) Based on Precise Point Positioning in the Chinese Region
TL;DR: The IGGtrop model achieves the best performance among the three models in the Chinese region, which makes the accuracy of the models rather critical for accurate positioning.
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Research on Attitude Models and Antenna Phase Center Correction for Jason-3 Satellite Orbit Determination.
TL;DR: The results prove the feasibility of the combined attitude in integrated POD and it can be as a revision of attitude event file and the orbital accuracy by introducing PCVs can be improved by the millimeter level.
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Simultaneous estimation of GPS P1-P2 differential code biases using low earth orbit satellites data from two different orbit heights
TL;DR: In this article, the authors applied four LEO satellites data from two different orbit heights to estimate GPS satellite differential code bias, receiver DCBs and LEO-based vertical total electron content (VTEC) parameters simultaneously.