Session A2: Alternatives, Backups, Complements to GNSS 1

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Date: Wednesday, January 28, 2026
Time: 8:30 a.m. - 12:15 p.m.
Location: Royal Ballroom AB
In-Person presenters in this session provide pre-recorded presentations for viewing by registered attendees on Tuesday, January 28.

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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 virtual attendees.
8:35	Decorrelation Analysis of Differential LEO Range Corrections     Landon Boyd, David M. Bevly, Auburn University Peer Reviewed
8:57	FFT Based DPD Localization Using LEO Signal without Signal Tracking     Kaito Kobayashi, Anji Fukuhara, Nobuaki Kubo, Tokyo University of Marine Science and Technology; Ryohei Takahashi, Shoichiro Adachi, Sergi Granell Escalfet, ArkEdge Space Inc. Peer Reviewed
9:43	Remarks on Tracking 5G NTN Signals with a GNSS-Centric SDR: CRLB, GPU/CPU-Based Correlation and C/N0-Estimation     Florian Binder, Christian A. Lichtenberger, Thomas Pany, University of the Bundeswehr Munich; Ottavio M. Picchi, External consultant for the Joint Research Centre, European Commission; Jón Winkel, Winkel Consulting SLF; Marco Rotoloni, Qascom; Francesco Menzione, European Commission Joint Research Center; Francis Soualle, Airbus Defense and Space; Peer Reviewed
10:05-10:35, Break. Refreshments in Exhibit Hall
10:40	Optimized Ground Segment Scheduling and URE Performance Analysis for Regional LEOPNT Architecture     Kihyun Kim, Department of Aerospace Engineering, Sejong University; Donguk Kim, Sunjin Kim, Agency for Defense Development; O-Jong Kim, Department of Aerospace Engineering, Sejong University Peer Reviewed
11:03	Evaluation of Broadcast Positioning System (BPS) Signals as a GNSS Alternative     Jahnvi Verma, Thomas Roden, The University of Alabama; Jeffrey A. Sherman, National Institute of Standards and Technology (NIST); Thejesh N. Bandi, The University of Alabama Peer Reviewed
11:26	Orbit Determination and Time Synchronization Using Navigation Ground Nodes for GNSS-Independent LEO PNT     Masaya Murata, Elena Galletti, Kyohei Akiyama, and Satoshi Kogure, Japan Aerospace Exploration Agency Peer Reviewed

On-Demand Presentations Pre-recorded presentations will become available for viewing by registered attendees on Tuesday, January 28.
	Error Modeling and Performance Evaluation of 5G RTT Positioning Methods     Jialun Li, Bo Zhang, Shuai Zhang, Yanhong Kou, Chao Sun, Yingzhe He, Lu Bai, Beihang University Peer Reviewed
	Radio SLAM-based 5G RSS Ranging in GNSS-Constrained Environments     Jialun Li, Shuai Zhang, Chao Sun, Bo Zhang, Yingzhe He, Beihang University Peer Reviewed
	Ranging Measurement Estimation Based on 5G Downlink PRS     Xinrong Lu, Chao Sun, Yang Xiao, Lu Bai, Haoxuan Yang, Wenquan Feng, Beihang University Peer Reviewed

12:15 p.m. – 1:15 p.m. Attendee Lunch Buffet Served in Exhibit Hall

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