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The Total Electron Content (TEC) is the ionospheric parameter that has the main effect on radio wave propagation. Therefore, it is crucial to evaluate the performance of the TEC models for the further improvement of the ionospheric modelling in equatorial regions. This work presents an analysis of the TEC, derived from the GPS Ionospheric Scintillation and TEC Monitor (GISTM) receiver at the Langkawi...
Total Electron Content (TEC) is the main parameter in the ionosphere that has significant effect on the propagation of radio waves causing delay errors on the GPS signals. Therefore, identifying an effective forecasting method is important to reduce the GPS position error. This research aimed to use the statistical Holt-Winter method to forecast the ionospheric vertical TEC (VTEC) over Malaysia. The...
The main cause of errors in the navigation of the Global Positioning System (GPS) satellite is the ionospheric delay. Therefore, ionospheric delay forecasting studies play an important role in the reduction of the positioning error. This paper focuses on forecasting of ionospheric delay using the statistical Holt-Winter method during the quiet and disturbed days in October 2011, using GPS Ionospheric...
The ionospheric delay is the main factor that causes the errors in the navigation of the global positioning system (GPS). GPS satellite signals propagate through the ionosphere before reaching the GPS receiver on earth. Therefore, ionosphere forecasting studies play an important role in the reduction of this positioning error. In this work, a statistical method for forecasting the ionospheric delay...
GPS is of great importance in precise positioning, however, the accuracy is marked by error sources, i.e. ionospheric effects. The signal information is delayed and the carrier phase experiences an advance due to the dispersive character of the ionosphere. The delay can be more than 100 meters in the worst case scenario and tends to increase with increasing solar activity. This error can be corrected...
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