Regional Ionosphere Modeling Using Smoothed Pseudoranges

• Main Authors: P. Wielgosz, I. Kashani, D. Grejner-brzezinska, Y. Zanimonskiy, J. Cisak
• Other Authors: The Pennsylvania State University CiteSeerX Archives
• Format: Text
• Language: English
• Subjects: Key words; GPS; Ionosphere; Antarctic; Antarc*
• Online Access: http://citeseerx.ist.psu.edu/viewdoc/summary?doi=10.1.1.575.2853; http://www.scar.org/publications/reports/23/wielgosz/AGS03-final.pdf

This paper demonstrates the concept and some practical examples of the ionospheric total electron content (TEC) modeling using undifferenced phase-smoothed pseudorange GPS observations. After the smoothing process, the pseudorange observations are, in fact, equivalent to the carrier phase observations, where the integer ambiguities might be biased. The resulting TEC estimates were tested against the International GPS Service (IGS) TEC data for some American, European and Antarctic stations. The point-measurements of TEC were interpolated using the Kriging technique, in order to create TEC maps. The quality of the ionosphere representation was tested by comparison to the