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Ionosphere-isolating method for ground-based augmentation system

  • Rui Xue*
  • , Jun Zhang
  • , Bing Du
  • *Corresponding author for this work
  • Beihang University

Research output: Chapter in Book/Report/Conference proceedingConference contributionpeer-review

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.

Original languageEnglish
Title of host publicationSecond International Conference on Space Information Technology
DOIs
StatePublished - 2007
Event2nd International Conference on Space Information Technology - Wuhan, China
Duration: 10 Nov 200711 Nov 2007

Publication series

NameProceedings of SPIE - The International Society for Optical Engineering
Volume6795
ISSN (Print)0277-786X

Conference

Conference2nd International Conference on Space Information Technology
Country/TerritoryChina
CityWuhan
Period10/11/0711/11/07

Keywords

  • Error correction
  • GBAS
  • GPS
  • Ionospheric measurement

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