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Author

Xingqun Zhan

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3 papers indexed here

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2026

Unified Gauss–Markov Modeling of Ionospheric Residuals for Spatiotemporal Cohesive Characterization

Ionospheric residuals from empirical models exhibit strong spatiotemporal correlations, posing a dominant error that undermines the integrity and robustness of single-frequency Global Navigation Satellite System (GNSS) applications, for example, in the aviation industry. This study develops a unified Gauss–Markov (GM)...

Zhi-Hong Li, Rong Yang, Xing-Qun Zhan et al. · 0 citations
Open access Aug 2026

Scalable multipath detection from standard GNSS correlators using multifrequency diversity

A multi-frequency cross-product area (MF-CPA) framework for multipath detection using only standard early-prompt-late I/Q correlator outputs, requiring no receiver modification, provides a scalable and interpretable solution for robust multipath monitoring in next-generation wireless navigation systems.

Rong Yang, Yuquan Ma, Zhi-Hong Li et al. · 0 citations
Open access Aug 2026

Optimizing network RTK positioning accuracy with centralized Kalman filtering

This paper proposes an undifferenced, uncombined centralized RTK positioning framework that maximizes the benefits from using multiple reference stations and produces an optimal positioning solution under Gaussian noise with correctly-specified error covariances.

Yuhang Gong, Shi-Zhuang Wang, Xing-Qun Zhan · 0 citations

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