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Massive Differencing of GNSS Pseudorange Measurements

Calatrava, Helena and Medina, Daniel and Closas, Pau (2023) Massive Differencing of GNSS Pseudorange Measurements. In: 2023 IEEE/ION Position, Location and Navigation Symposium (PLANS). IEEE/ION PLANS 2023, 2023-04-24 - 2023-04-27, Monterey, California, US. doi: 10.1109/PLANS53410.2023.10139935.

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Global Navigation Satellite Systems (GNSS) is a popular positioning solution able to provide high accuracy, integrity, reliability and high coverage. GNSS performance may be enhanced through aiding systems such as Differential GNSS (DGNSS), which aims to mitigate disruptive sources of error by using corrections sent from a reference station. In this paper, we investigate a method that provides performance results comparable to those by DGNSS without the need for a reference station. We propose the Massive User-Centric Single Difference (MUCSD) algorithm, which leverages a set of collaborative receivers exchanging observables and, potentially, their noisy estimates of position and clock bias. MUCSD is implemented as an iterative weighted least squares (WLS) estimator and its lower accuracy bound, as given by the Cramér-Rao Bound (CRB), is derived as a performance benchmark for the WLS solution. Simulation results are provided as a function of the number of collaborative users and the exchanged information uncertainty. Results show that, without having to access costly-to-maintain reference stations, MUCSD asymptotically outperforms DGNSS as the number of collaborative receivers grows.

Item URL in elib:https://elib.dlr.de/195144/
Document Type:Conference or Workshop Item (Lecture)
Title:Massive Differencing of GNSS Pseudorange Measurements
AuthorsInstitution or Email of AuthorsAuthor's ORCID iDORCID Put Code
Medina, DanielUNSPECIFIEDhttps://orcid.org/0000-0002-1586-3269UNSPECIFIED
Closas, PauUNSPECIFIEDhttps://orcid.org/0000-0002-5960-6600UNSPECIFIED
Date:April 2023
Journal or Publication Title:2023 IEEE/ION Position, Location and Navigation Symposium (PLANS)
Refereed publication:Yes
Open Access:Yes
Gold Open Access:No
In ISI Web of Science:No
Keywords:Differential GNSS, Collaborative Positioning, Iterative weighted least squares, Cramér-Rao Bound
Event Title:IEEE/ION PLANS 2023
Event Location:Monterey, California, US
Event Type:international Conference
Event Start Date:24 April 2023
Event End Date:27 April 2023
HGF - Research field:Aeronautics, Space and Transport
HGF - Program:Space
HGF - Program Themes:Communication, Navigation, Quantum Technology
DLR - Research area:Raumfahrt
DLR - Program:R KNQ - Communication, Navigation, Quantum Technology
DLR - Research theme (Project):R - Project Global Connectivity - HAP [KNQ], V - FuturePorts
Location: Neustrelitz
Institutes and Institutions:Institute of Communication and Navigation > Nautical Systems
Deposited By: Medina, Daniel
Deposited On:01 Jun 2023 14:42
Last Modified:27 May 2024 12:44

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