Ionospheric modelling: Improving the Accuracy of differential GPS (dGPS) in equatorial regions

Norsuzila Ya'acob, Mardina Abdullah, Mahamod Ismail

Research output: Chapter in Book/Report/Conference proceedingConference contribution

2 Citations (Scopus)

Abstract

The ionospheric delay in the propagation of Global Positioning System (GPS) signal is one of the main sources of error in GPS precise positioning. Therefore, it is important to have a precise estimation of the ionospheric delays. A new approach in the determination of the differential (between spaced receivers) ionospheric error to sub-centimetre accuracy is described in this paper utilising a developed model. For the standard differential GPS method, GPS measurements at two spaced receiving stations; one of which (the reference station) is at a surveyed location, where the effect of the ionosphere can be determined and used to correct the range measurement at the second (mobile) station. An ionospheric correction model has been developed to accurately determine the difference in ionospheric delay expected over a short baseline so that a more accurate differentia] GPS correction can be made. The developed model is a function of elevation angle and TEC.

Original languageEnglish
Title of host publication2007 Asia-Pacific Conference on Applied Electromagnetics Proceedings, APACE2007
DOIs
Publication statusPublished - 2007
Event2007 Asia-Pacific Conference on Applied Electromagnetics, APACE2007 - Melaka
Duration: 4 Dec 20076 Dec 2007

Other

Other2007 Asia-Pacific Conference on Applied Electromagnetics, APACE2007
CityMelaka
Period4/12/076/12/07

Fingerprint

Global positioning system
Ionosphere

Keywords

  • Differential GPS (dGPS)
  • Ionosphere
  • Phase levelling
  • Precise GPS positioning
  • TEC

ASJC Scopus subject areas

  • Electrical and Electronic Engineering

Cite this

Ya'acob, N., Abdullah, M., & Ismail, M. (2007). Ionospheric modelling: Improving the Accuracy of differential GPS (dGPS) in equatorial regions. In 2007 Asia-Pacific Conference on Applied Electromagnetics Proceedings, APACE2007 [4603902] https://doi.org/10.1109/APACE.2007.4603902

Ionospheric modelling : Improving the Accuracy of differential GPS (dGPS) in equatorial regions. / Ya'acob, Norsuzila; Abdullah, Mardina; Ismail, Mahamod.

2007 Asia-Pacific Conference on Applied Electromagnetics Proceedings, APACE2007. 2007. 4603902.

Research output: Chapter in Book/Report/Conference proceedingConference contribution

Ya'acob, N, Abdullah, M & Ismail, M 2007, Ionospheric modelling: Improving the Accuracy of differential GPS (dGPS) in equatorial regions. in 2007 Asia-Pacific Conference on Applied Electromagnetics Proceedings, APACE2007., 4603902, 2007 Asia-Pacific Conference on Applied Electromagnetics, APACE2007, Melaka, 4/12/07. https://doi.org/10.1109/APACE.2007.4603902
Ya'acob N, Abdullah M, Ismail M. Ionospheric modelling: Improving the Accuracy of differential GPS (dGPS) in equatorial regions. In 2007 Asia-Pacific Conference on Applied Electromagnetics Proceedings, APACE2007. 2007. 4603902 https://doi.org/10.1109/APACE.2007.4603902
Ya'acob, Norsuzila ; Abdullah, Mardina ; Ismail, Mahamod. / Ionospheric modelling : Improving the Accuracy of differential GPS (dGPS) in equatorial regions. 2007 Asia-Pacific Conference on Applied Electromagnetics Proceedings, APACE2007. 2007.
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