Model validation for total Electron Content (TEC) at an equatorial region

Norsuzila Ya'acob, Mardina Abdullah, Mahamod Ismail, Azami Zaharim

Research output: Contribution to journalArticle

17 Citations (Scopus)

Abstract

The ionosphere has practical importance in GPS applications because it influences transionospheric radio wave propagation. The parameter of ionosphere that produces most of the effects on radio signals is Total Electron Content (TEC). By modelling this TEC parameter, the evaluation of the ionospheric error and the correction of these ionospheric errors for differential GPS can be done. A new approach in the determination of the differential ionospheric error to sub-centimeter accuracy is described in this paper utilizing a developed model. An ionospheric delay model was developed to accurately determine the difference in ionospheric delay expected over a short baseline so that a more accurate differential GPS correction could be made. An ionospheric error correction model should be made applicable to any location including the equatorial region. The results showed that the developed algorithm is a function of elevation angle and TEC from the reference station path to the satellite and could give differential ionospheric delay in sub-centimetre accuracy.

Original languageEnglish
Pages (from-to)643-649
Number of pages7
JournalEuropean Journal of Scientific Research
Volume28
Issue number4
Publication statusPublished - 2009

Fingerprint

Model Validation
model validation
Global positioning system
GPS
Ionosphere
electrons
Error correction
Electrons
Electron
ionosphere
Radio Waves
Angle of elevation
radio waves
error correction
Radio waves
radio wave
Radio
Error Correction Model
Wave propagation
wave propagation

Keywords

  • Baseline
  • Differential GPS
  • GPS
  • Ionosphere
  • TEC
  • Transionospheric

ASJC Scopus subject areas

  • General

Cite this

Model validation for total Electron Content (TEC) at an equatorial region. / Ya'acob, Norsuzila; Abdullah, Mardina; Ismail, Mahamod; Zaharim, Azami.

In: European Journal of Scientific Research, Vol. 28, No. 4, 2009, p. 643-649.

Research output: Contribution to journalArticle

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