Session E3b: Advanced Technologies in High Precision GNSS Positioning

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Date: Thursday, September 11, 2025
Time: 8:30 a.m. - 12:15 p.m.
Location: Holiday 1 (Second Floor)
In-Person presenters in this session provide pre-recorded presentations for viewing by registered attendees on Wednesday, September 10.

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In-Person Presentations These presentations will be given in-person at the conference. Presenters will provide a pre-recorded presentation for on-demand viewing by all registered attendees.
8:35	Genesis – An ESA Mission at the Foundation of Navigation   S. Gidlund, G. Fusco, P. Waller, E. Honoré-Livermore, E. Sakalauskaite, European Space Agency (ESA) Directorate of Navigation, ESA/ESTEC; W. Enderle, E. Schoenemann, J.C. Berton, Directorate of Operations, ESA/ESOC
8:57	QZSS CLAS: Performance Evaluation and Improvement against Severe Ionospheric Disturbances Under High Solar Activity     Natsuko Hayase, Mitsubishi Electric Corporation; Susumu Saito, Electronic Navigation Research Institute; Ryosuke Saito, Masakazu Miya, Rui Hirokawa, Hiroyuki Mineyama, So Tajima, Seigo Fujita, and Kazutoshi Sato, Mitsubishi Electric Corporation
9:20	A New Paradigm in Nationwide GNSS Precise Positioning: Satellite-Broadcasted OSR Corrections via Homogeneous Network RTK Methodology     Cheolsoon Lim, Sejong University, LIG Nex1; Yongrae Jo, Sungik Kim, Yebin Lee, Byungwoon Park, Sejong University
9:43	Evaluating GEODNET Network Performance and its Impact on Consumer Navigation Applications Mike Horton, Yudan Yi, and David Chen, GEODNET
10:05-10:35, Break. Refreshments in Exhibit Hall
10:40	Low-Latency, Cloud-Based Positioning for Mobile Applications     Landon Urquhart, York University, u-blox; Rodrigo Leandro, u-blox; Sunil Bisnath, York University Peer Reviewed
11:03	Enhanced Protection Level Based on Non-Gaussian Models with an Application to RTK Precise Positioning   Yuting Gao, Jiakun Li, Xi'an University of Science and Technology; Baoyu Liu, Yang Jiang, and Yang Gao, The University of Calgary Peer Reviewed
11:26	Assessment of PPP-AR Based on IF Model Generalized to all Available Frequencies     Anthony Hoareau, Patrick Sarri, Khoder Makkawi, Jessica Colombel, Remi Burtin, Alexis Guinamard, SBG Systems
11:48	Shedding Light on Factor Graph Optimization: An Analysis of the Structure and Dimensionality of the Optimization Problem for GNSS-PPP     Axel Koppert, Eva Buchmayer, Institute of Geodesy, Graz University of Technology Student Paper Award Winner Peer Reviewed
Alternate Presentations Alternate presentations may be given in-person at the conference if other authors are unable to present. Alternate Presenters will provide a pre-recorded presentation for on-demand viewing by all registered attendees.
1.	Investigating Cycle Slip Repair for Single and Multi-Frequency Smartphone GNSS   Naman Agarwal and Kyle O'Keefe, Department of Geomatics Engineering, University of Calgary
2.	Comprehensive Performance Evaluation of QZSS CLAS Over Four Years (2021-2024) Spanning the Solar Maximum     Hayato Shiono, Nobuaki Kubo, Tokyo University of Marine Science and Technology

On-Demand Presentation Pre-recorded presentations will become available for viewing by registered attendees on Wednesday, September 10.
	High Precision and Cost Efficiency: The Realization of a Nationwide PPP-RTK System     Bowen Duan, Haohao Xin, Qiang Zhang, Mengxiang Tong, Yilong Yuan, Chang Liu Positioning Technology Center Tencent Technology (Beijing) Co., Ltd. Peer Reviewed

12:15 p.m. – 1:15 p.m., Buffet Lunch in Exhibit Hall • 1:15 p.m. – 1:45 p.m., Free Time in Exhibit Hall

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