NDLI: Global positioning system accuracy under varying ionospheric conditions for surface Automatic Dependent Surveillance-Broadcast applications

Content Provider	IEEE Xplore Digital Library
Author	Bian, B. Moertl, P.M.
Copyright Year	2012
Description	Author affiliation: The MITRE Corporation, Center for Advanced Aviation System Development, McLean, Virginia, USA (Bian, B.; Moertl, P.M.)
Abstract	New flight deck-based applications of Automatic Dependent Surveillance-Broadcast (ADS-B) offer the potential to meet improved critical safety and economic targets for airport surface operations. Specifically, standards for ADS-B applications have been developed [1] to reduce and prevent runway collisions between aircraft on the airport surface using flight deck equipment. Such applications require surveillance information with position accuracy ranging between 10 to 30 meters 95 percent of the time. Global Positioning System (GPS) information without Wide Area Augmentation System (WAAS) provides sufficient position accuracy under most conditions; however, significant solar flare activities can change the ionization characteristics of the upper layers of the atmosphere which alters GPS signal propagation resulting in decreased position accuracy, potentially making the information unusable for ADS-B surface applications. This paper describes the results of an analysis of the impact of ionospheric disturbances on the position accuracy of a single frequency GPS receiver under a range of assumed operational conditions. The results are expected to be useful for an assessment of single frequency GPS technology for ADS-B surface applications and to help identify mitigations. The analysis assumes a nominal GPS constellation as defined in the GPS Standard Positioning Service (SPS) Performance Standards (PS) and a set of GPS receiver errors models. These include tropospheric, multi-path, and receiver noise error models, which are either adopted by the GPS WAAS aviation receiver performance standard or shown in open literature as representative of actual GPS receiver errors. Interference errors are assumed to be zero and interference risks are assumed to have been mitigated by airport operation authorities. The ionospheric errors are modeled based on the errors in actual GPS Navigation Message broadcast values under minimum, maximum, and average solar cycle activity conditions. Results show the impact of these activities on various position accuracy parameters and horizontal position, and include worst case conditions. Given the assumed models, the accuracy requirements for ADS-B surface applications were always exceeded for modern GPS receivers operating in all-in-view mode, suggesting feasibility of non-WAAS, single frequency GPS for ADS-B surface applications. The paper concludes with an outline of research needs and proposed next steps.
File Size	1792514
File Format	PDF
ISBN	9781467319010
ISSN	21554951
e-ISBN	9781467319003
DOI	10.1109/ICNSurv.2012.6218374
Language	English
Publisher	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Publisher Date	2012-04-24
Publisher Place	USA
Access Restriction	Subscribed
Rights Holder	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Subject Keyword	Accuracy Atmospheric modeling Receivers Airports Safety Aircraft Global Positioning System
Content Type	Text
Resource Type	Article

Sl.	Authority	Responsibilities	Communication Details
1	Ministry of Education (GoI), Department of Higher Education	Sanctioning Authority	https://www.education.gov.in/ict-initiatives
2	Indian Institute of Technology Kharagpur	Host Institute of the Project: The host institute of the project is responsible for providing infrastructure support and hosting the project	https://www.iitkgp.ac.in
3	National Digital Library of India Office, Indian Institute of Technology Kharagpur	The administrative and infrastructural headquarters of the project	Dr. B. Sutradhar bsutra@ndl.gov.in
4	Project PI / Joint PI	Principal Investigator and Joint Principal Investigators of the project	Dr. B. Sutradhar bsutra@ndl.gov.in Prof. Saswat Chakrabarti will be added soon
5	Website/Portal (Helpdesk)	Queries regarding NDLI and its services	support@ndl.gov.in
6	Contents and Copyright Issues	Queries related to content curation and copyright issues	content@ndl.gov.in
7	National Digital Library of India Club (NDLI Club)	Queries related to NDLI Club formation, support, user awareness program, seminar/symposium, collaboration, social media, promotion, and outreach	clubsupport@ndl.gov.in
8	Digital Preservation Centre (DPC)	Assistance with digitizing and archiving copyright-free printed books	dpc@ndl.gov.in
9	IDR Setup or Support	Queries related to establishment and support of Institutional Digital Repository (IDR) and IDR workshops	idr@ndl.gov.in