Total Electron Content (TEC) Estimation Using GPS Measurements Onboard TerraSAR-X

Key-Rok Choi and E. Glenn Lightsey

Abstract:	TerraSAR-X (TSX) is a high-resolution interferometric Synthetic Aperture Radar (SAR) mission from DLR (German Aerospace Center, Deutsches Zentrum für Luft- und Raumfahrt). TSX was successfully launched into space on June 15, 2007. It includes a dual-frequency GPS receiver called IGOR (Integrated GPS Occultation Receiver), which was provided by Broad Reach Engineering of Tempe, AZ. The IGOR design is based on NASA/JPL's BlackJack receiver. This paper describes total electron content (TEC) estimation using TerraSAR-X GPS measurements for ionospheric experiments performed with the TerraSAR-X IGOR Engineering Model(EM)/Flight Model(FM) GPS receiver. The experiments include simulated GPS data (IGOR EM) and comparison with the results from onboard data collected from TSX (IGOR FM). The version of the software for the TSX IGOR receiver is known as TSX 1.0, which was specially-modified software developed at UT/CSR. This software was upgraded to TSX 1.1, which has been successfully uploaded to the TerraSAR-X IGOR receiver, to provide enhanced occultation capabilities.
Published in:	Proceedings of the 2008 National Technical Meeting of The Institute of Navigation January 28 - 30, 2008 The Catamaran Resort Hotel San Diego, CA
Pages:	923 - 934
Cite this article:	Choi, Key-Rok, Lightsey, E. Glenn, "Total Electron Content (TEC) Estimation Using GPS Measurements Onboard TerraSAR-X," Proceedings of the 2008 National Technical Meeting of The Institute of Navigation, San Diego, CA, January 2008, pp. 923-934.
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