Estimation of total electron content (TEC) using spaceborne GPS measurements

  title={Estimation of total electron content (TEC) using spaceborne GPS measurements},
  author={Key-rok Choi and E. Glenn Lightsey},
  journal={The Journal of the Astronautical Sciences},
TerraSAR-X (TSX), a high-resolution interferometric Synthetic Aperture Radar (SAR) mission from DLR (German Aerospace Center, Deutsches Zentrum für Luft-und Raumfahrt), was successfully launched into orbit on June 15, 2007. It includes a dual-frequency GPS receiver called IGOR (Integrated GPS Occultation Receiver), which is a heritage NASA/JPL BlackJack receiver. The software for the TSX IGOR receiver was specially-modified software developed at UT/CSR. This software was upgraded to provide… CONTINUE READING