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Wide Area and Local Area Augmentations: Design Tools and Error Modelling

Published online by Cambridge University Press:  01 January 1998

V. Ashkenazi ,
W. Chen ,
C. J. Hill  and
T. Moore
V. Ashkenazi
Affiliation:
Institute of Engineering Surveying and Space Geodesy, The University of Nottingham
W. Chen
Affiliation:
Institute of Engineering Surveying and Space Geodesy, The University of Nottingham
C. J. Hill
Affiliation:
Institute of Engineering Surveying and Space Geodesy, The University of Nottingham
T. Moore
Affiliation:
Institute of Engineering Surveying and Space Geodesy, The University of Nottingham
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Abstract

The development of augmentation services, such as EGNOs and WAAS, requires careful modelling and simulation before any deployment of equipment takes place. The ideal location of ground stations, and the potential impact of temporary failures of ground equipment, must be assessed in detail, to ensure that proposed service levels of accuracy and integrity are maintained at all times. The correct analysis of these parameters can only be achieved if the various wide area processing models, and their respective error propagation characteristics, are suitably simulated. This paper describes the use of a sophisticated and versatile suite of GNSS analysis tools in recent studies. It describes the incorporation of realistic error budgets for WADGPS and LADGPS corrections, and the potential use of different combinations of GPS, GLONASS, geostationary and other satellites in both GNSS-1 and GNSS-2.

Keywords

Satellite navigationAugmentationDesign toolsError modelling
Type
Research Article
Information
The Journal of Navigation , Volume 51 , Issue 1 , January 1998 , pp. 58 - 66
Copyright
© 1998 The Royal Institute of Navigation

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