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Journal Article Availability Assessment of GPS Augmentation System Using Geostationary Satellite and QZSS in Seoul Urban Area
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Authors
By Kyungho Yoo, Sang Kyung Sung, Eun Sung Lee, San Guk Lee, Jae Hoon Kim, Ho Jin Lee, Young Jae Lee
Issue Date
2009-02
Citation
Transactions of the Japan Society for Aeronautical and Space Sciences, v.52, no.177, pp.152-158
ISSN
0549-3811
Publisher
일본항공우주학회
Language
English
Type
Journal Article
DOI
https://dx.doi.org/10.2322/tjsass.52.152
Abstract
Today Global Navigation Satellite Systems (GNSS) are widely used for determining position. Within the city environment, however, in which there are many tall buildings, GNSS signals are frequently interrupted, making it difficult for users to obtain information on their exact position. This paper analyzed the availability and positioning performance of a GPS augmented system within the Seoul urban area using the Japanese QZSS (Quasi-Zenith Satellite System) and a geostationary satellite. A 3-dimensional reproduction of Seoul that was based on the 3D GIS (Geographic Information System) Digital Map and a satellite tracking algorithm using Ray-Triangle Intersection algorithm were discussed. A satellite tracking algorithm was verified through filed testing and the QZSS orbit simulator was realized using Keplerian parameter. DOP (Dilution of Precision) and availability in the urban area of Seoul were analyzed using a GPS/QZSS/geostationary satellite separately and simultaneously. © 2009 The Japan Society for Aeronautical and Space Sciences.
KSP Keywords
3-dimensional, 3d gis, Augmentation system, Augmented system, City environment, Digital map, Dilution of Precision, GNSS signal, Geographic information system(GIS), Geostationary satellite, Quasi-Zenith Satellite System(QZSS)