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Parametric Study on Wide Area Augmentation System for GPS Accuracy Enhancment

by Dina Zayan, Mohamed Rehan
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International Journal of Computer Applications
Foundation of Computer Science (FCS), NY, USA
Volume 28 - Number 9
Year of Publication: 2011
Authors: Dina Zayan, Mohamed Rehan
10.5120/3412-4761

Dina Zayan, Mohamed Rehan . Parametric Study on Wide Area Augmentation System for GPS Accuracy Enhancment. International Journal of Computer Applications. 28, 9 ( August 2011), 46-50. DOI=10.5120/3412-4761

@article{ 10.5120/3412-4761,
author = { Dina Zayan, Mohamed Rehan },
title = { Parametric Study on Wide Area Augmentation System for GPS Accuracy Enhancment },
journal = { International Journal of Computer Applications },
issue_date = { August 2011 },
volume = { 28 },
number = { 9 },
month = { August },
year = { 2011 },
issn = { 0975-8887 },
pages = { 46-50 },
numpages = {9},
url = { https://ijcaonline.org/archives/volume28/number9/3412-4761/ },
doi = { 10.5120/3412-4761 },
publisher = {Foundation of Computer Science (FCS), NY, USA},
address = {New York, USA}
}
%0 Journal Article
%1 2024-02-06T20:14:23.110986+05:30
%A Dina Zayan
%A Mohamed Rehan
%T Parametric Study on Wide Area Augmentation System for GPS Accuracy Enhancment
%J International Journal of Computer Applications
%@ 0975-8887
%V 28
%N 9
%P 46-50
%D 2011
%I Foundation of Computer Science (FCS), NY, USA
Abstract

GPS systems are used extensively for location determination in outdoor and urban areas. Many location-based services based on GPS system were introduced to the market over the previous few years. The GPS system was found to be of considerable limited accuracy due to several reasons which cause the accuracy to be in a range of 4 meters. Due to this, several accuracy enhancement techniques were proposed and some of them were standardized and deployed. The Wide Area Augmentation System (WAAS) is one these techniques which was developed in order to improve the GPS signal accuracy, availability and integrity. This paper focuses on the WAAS parameters and their performance in different environmental conditions that could cause ionospheric, satellite clock, and ephermis errors which consequently degrade the accuracy of the GPS signal. The WAAS architecture, performance, and main parameters are presented and their performance is simulated and analyzed under storming conditions. In addition, the potential of using the WAAS in combination with augmentation systems is discussed.

References
  1. Anis Drira, “GPS Navigation for Outdoor and Indoor Environment”, University of Tennessee, Knoxville, 2006.
  2. Elliott D. Kaplan, Christopher J. Hegarty, “Understanding GPS, Principles and Applications”, second edition, ARTECH House, 2006.
  3. Jan, S.S.; Gebre-Egziabher, D.; Walter, T. Enge, P, “Improving GPS-Based Landing System Performance Using an Empirical Barometric Altimeter Confidence Bound”,. IEEE T. Aero. Elec. Sys., 44, 127-146, 2008.
  4. Jan, S.S, “Aircraft Landing Using a Modernized Global Position System and the Wide Area Augmentation System”, Ph.D. thesis, Department of Aeronautics and Astronautics, Stanford University, USA, 2003.
  5. Todd Walter and Per Enge, “System Overview, Recent Developments, and Future outlook for WAAS and LAAS”, Stanford University, 2004.
  6. “Global Positioning System, Wide Area Augmentation System Performance Standard”, Federal Aviation Administration, 31st October 2008.
  7. J. David Powell, “Space Weather: It’s Effect on GNSS, DGNSS, SBAS, and Flight Inspection”, Aero/Astro Dept., Stanford University, Stanford, CA, 2010.
  8. S.S.Riaz Ahamed, “The Effects of Global Positioning System for Reliable Positioning, Navigation, and Timing Services”, Journal of Theoretical and Applied Information Technology, 2008.
  9. “Vertical Guidance Performance Analysis of the L1-L5 Dual Frequency GPS/WAAS User Avionics Sensor”, Institute of Civil Aviation, Shau Shiun Jun, 25 March 2010.
  10. Todd Walter and Per Enge, “Modernizing WAAS”, Stanford University, 2005.
Index Terms

Computer Science
Information Sciences

Keywords

GPS accuracy WAAS satellite communications

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