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Precision-Aided Partial Ambiguity Resolution Scheme for GNSS Attitude Determination

Castro Arvizu, Juan Manuel and Medina, Daniel and Vilà-Valls, Jordi (2023) Precision-Aided Partial Ambiguity Resolution Scheme for GNSS Attitude Determination. Institute of Navigation (ION). ION ITM 2023, Long Beach, California, US. doi: 10.33012/2023.18673.

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Official URL: https://www.ion.org/publications/abstract.cfm?articleID=18673


The use of carrier phase data play an important role for high-precision Global Navigation Satellite Systems (GNSS) positioning solutions, such as Real-Time Kinematic (RTK). Similarly, precise orientation information can be obtained with multi-antenna setups which exploit carrier phase observables. The availability of high precision navigation solutions is, however, subject to the Integer Ambiguity Resolution (IAR) performance. IAR is the process of mapping the real-valued carrier ambiguities to integer ones, enhancing the attitude solution by virtue of the cross-correlation with the estimated integer ambiguities. Unfortunately, IAR is known to suffer from dimensionality course or, in other words, the chances for finding the correct vector of integers reduces with the number of ambiguities. This work focuses on improving the availability of high precision attitude estimates by means of using a Partial Ambiguity Resolution (PAR) scheme. PAR relaxes the condition of estimating the complete vector of ambiguities and, instead and finds a subset of them to maximize the availability. A new formulation for attitude determination using quaternion rotation within a precision-driven PAR scheme is proposed. Numerical simulations are used to showcase the attitude determination performance with a conventional Full Ambiguity Resolution (FAR) and a precision-aided PAR approach.

Item URL in elib:https://elib.dlr.de/193961/
Document Type:Conference or Workshop Item (Lecture)
Title:Precision-Aided Partial Ambiguity Resolution Scheme for GNSS Attitude Determination
AuthorsInstitution or Email of AuthorsAuthor's ORCID iDORCID Put Code
Medina, DanielUNSPECIFIEDhttps://orcid.org/0000-0002-1586-3269UNSPECIFIED
Vilà-Valls, JordiUNSPECIFIEDhttps://orcid.org/0000-0001-7858-4171UNSPECIFIED
Date:22 February 2023
Refereed publication:Yes
Open Access:Yes
Gold Open Access:No
In ISI Web of Science:No
Page Range:pp. 591-596
Publisher:Institute of Navigation (ION)
Series Name:Proceedings of the 2023 International Technical Meeting, ION ITM 2023
Keywords:GNSS; PAR; Ambiguity Resolution; Attitude Estimation; PNT; GNSS Attitude Model
Event Title:ION ITM 2023
Event Location:Long Beach, California, US
Event Type:international Conference
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]
Location: Neustrelitz
Institutes and Institutions:Institute of Communication and Navigation > Nautical Systems
Deposited By: Medina, Daniel
Deposited On:22 Feb 2023 09:31
Last Modified:22 Feb 2023 09:31

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