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Ionospheric perturbation degree estimates for improving GNSS applications

Jakowski, N. and Wilken, V. and Hlubek, N. and Hoque, Mohammed M. and Berdermann, J. (2014) Ionospheric perturbation degree estimates for improving GNSS applications. COSPAR Scientific Assembly, 2.-10. August 2014, Moskau, Russland.

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Abstract

Ionosphere can adversely affect accuracy, continuity, availability, and integrity of modern Global Navigation Satellite Systems (GNSS) in different ways. Hence, reliable information on key parameters describing the perturbation degree of the ionosphere is helpful for estimating the potential degradation of the performance of these systems. So, to guarantee the required safety level in aviation, Ground Based Augmentation Systems (GBAS) and Satellite Based Augmentation Systems (SBAS) have been established for detecting and mitigating ionospheric threats in particular due to ionospheric gradients. The paper reviews various attempts and capabilities to characterize the perturbation degree of the ionosphere currently being used in precise positioning and safety of life applications. Continuity and availability of signals are mainly impacted by amplitude and phase scintillations characterized by indices such as S4 or phase noise. To characterize medium and large scale ionospheric perturbations that may seriously affect accuracy and integrity of GNSS, the use of an internationally standardized Disturbance Ionosphere Index (DIX) is recommended. The definition of such a DIX must take into account the practical needs, should be an objective measure of ionospheric conditions and easy and reproducible to compute. A preliminary DIX approach is presented and discussed. Such a robust and easy adaptable index should have a great potential for being used in operational ionospheric weather services and GNSS augmentation systems.

Item URL in elib:https://elib.dlr.de/95231/
Document Type:Conference or Workshop Item (Speech)
Title:Ionospheric perturbation degree estimates for improving GNSS applications
Authors:
AuthorsInstitution or Email of AuthorsAuthors ORCID iD
Jakowski, N.norbert.jakowski (at) dlr.deUNSPECIFIED
Wilken, V.volker.wilken (at) dlr.deUNSPECIFIED
Hlubek, N.Nikolai. Hlubek (at) dlr.deUNSPECIFIED
Hoque, Mohammed M.Mainul.Hoque (at) dlr.deUNSPECIFIED
Berdermann, J.jens.berdermann (at) dlr.deUNSPECIFIED
Date:7 August 2014
Refereed publication:No
Open Access:Yes
Gold Open Access:No
In SCOPUS:No
In ISI Web of Science:No
Status:Published
Keywords:Ionosphere, perturbation, Navigation Satellite Systems, index
Event Title:COSPAR Scientific Assembly
Event Location:Moskau, Russland
Event Type:international Conference
Event Dates:2.-10. August 2014
Organizer:Committee on Space Research
HGF - Research field:Aeronautics, Space and Transport
HGF - Program:Space
HGF - Program Themes:Communication and Navigation
DLR - Research area:Raumfahrt
DLR - Program:R KN - Kommunikation und Navigation
DLR - Research theme (Project):R - Vorhaben Ionosphäre
Location: Neustrelitz
Institutes and Institutions:Institute of Communication and Navigation > Navigation
Deposited By: Jakowski, Dr.rer.nat. Norbert
Deposited On:18 Feb 2015 10:21
Last Modified:31 Jul 2019 19:51

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