Session D3: Precise Positioning and its Integrity: Architecture and Algorithm Design

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Date: Thursday, September 17, 2026
Time: 8:30 a.m. - 12:15 p.m.
Location: Windsong 5-6
In-Person presenters in this session provide pre-recorded presentations for viewing by registered attendees on Wednesday, September 16.

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	Fast-PPP Performance Under Different SSR Product Providers: Orbit, Clock, and Bias Coherence in the IONO4HAS CPF Jaume Sanz, José M. Juan, Cristhian C. Timote, Adrià Rovira, Angela Aragón, Guillermo Gonzàlez, Research group of Astronomy and Geomatics, Universitat Politècnica de Catalunya (gAGE/UPC); Raül Orús-Pérez, Wave Interaction and Propagation Section, European Space Agency (ESA); Ignacio Fernández-Hernández, Tom Willems, Directorate-General for Defense Industry and Space (DEFIS), European Commission (EC)
8:57	A Spatio-Temporal Stochastic Model for Ionosphere-Weighted GNSS Positioning in Low-Latitude Regions Xingyu Chen, Department of Land Surveying and Geo-Informatics, The Hong Kong Polytechnic University; State Key Laboratory of Precision Geodesy, Innovation Academy for Precision Measurement Science and Technology, Chinese Academy of Sciences (CAS); Xiaolong Mi, Wu Chen and Tong Liu, Department of Land Surveying and Geo-Informatics, The Hong Kong Polytechnic University; Yunbin Yuan, Hongjin Xu (State Key Laboratory of Precision Geodesy, Innovation Academy for Precision Measurement Science and Technology, CAS
9:20	Integrity Monitoring of SSR Services for a Dual Automotive and Rail Augmentation Network Mauro Cardone, Italian Space Agency; Alessandro Neri, Alessia Vennarini, Arianna Persia, Valeria Ioannucci, Francesco Rispoli, Radiolabs
9:43	Advancing High Precision GNSS Positioning through Incremental Factor Graph Optimization for PPP and RTK Tibor Dome, Miguel Ortiz Rejon, Yuheng Zheng, Elisa Benedetti, GMV; Mengwei Sun, Ivan Petrunin, Cranfield University, GMV
10:05-10:35, Break. Refreshments in Exhibit Hall
10:40	Enhancing RTK Ambiguity Resolution in Urban Environments Using TD-CMC Screening Jongbok Lee, Daniel Gerbeth, Maria Caamano, Chen Zhu, Institute of Communications and Navigation, German Aerospace Center (DLR)
11:03	Receiver Placement and Number Selection of Ground-Based Integrity Monitor Via Convex Optimization Yu-Fang Lai, Juan Blanch, Todd Walter, Stanford University
11:26	FT-Transformer-Based Ambiguity Validation in PPP-AR with Probabilistic Reliability Evaluation Dai Wuran, Naser El-Sheimy, Hongzhou Yang, Department of Geomatics Engineering, University of Calgary
11:48	A Refined Integrity Support Message Construction Method for RT-PPP Protection Level Calculation Ling Yang, Xinya Qin,Yang Wu, Tongji University
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.	Satellite Based OSR Augmentation Service: HN-RTK Using Spherical Cap Harmonics Analysis Sungik Kim, Yongrae Jo, Yebin Lee, Byungwoon Park, Sejong University; Cheolsoon Lim, LIG Nex1
2.	Coordination of Ground-to-Space Reference Networks for High-Precision GNSS Xue Xian Zheng, King Abdullah University of Science and Technology (KAUST); Xing Liu, José A. López-Salcedo, Gonzalo Seco-Granados, Universitat Autònoma de Barcelona (UAB); Tareq Y. Al-Naffouri, King Abdullah University of Science and Technology (KAUST)
3.	Achieving Centimeter-Level Accuracy in a Novel Real-Time On-Board LEO POD Framework Akshaansh Chilakapati, Anurag Patil, VyomIC; B.P. Dakshayani, Ex-ISRO; Lokesh Kabdal, VyomIC

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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