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Proceedings Paper

Ionosphere-isolating method for ground-based augmentation system
Author(s): Rui Xue; Jun Zhang; Bing Du
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Paper Abstract

This paper describes a new method utilizing dual-frequency GPS data to improve the accuracy of Ground-based Augmentation System (GBAS). With this so called ionosphere-isolating method, two dual frequency carrier-smoothing filters are used to estimate differential correction and ionosphere refraction separately. By dual frequency filtering, the filter in ground and airborne can be decoupled. By utilizing both of the two estimations, dual-frequency airborne user can eliminate residual differential correction error imposed by ionosphere spatial gradient. A new GBAS architecture that exploits ionosphere-isolating method to improve the accuracy of code differential systems is presented.

Paper Details

Date Published: 10 November 2007
PDF: 6 pages
Proc. SPIE 6795, Second International Conference on Space Information Technology, 679542 (10 November 2007); doi: 10.1117/12.774544
Show Author Affiliations
Rui Xue, Beihang Univ. (China)
Jun Zhang, Beihang Univ. (China)
Bing Du, Beihang Univ. (China)

Published in SPIE Proceedings Vol. 6795:
Second International Conference on Space Information Technology

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