Modified Tomographic Estimation of the Ionosphere using the set of adequate bases Dec 1, 2004· Youngho Sohn Changdon Kee · 0 min read Last updated on Dec 1, 2004 Authors Youngho Sohn Ph.D Authors Changdon Kee Professor ← Integer Ambiguity Search Technique Using Separated Gaussian Variables Dec 1, 2004 Automatic Control of Unmanned Aircrafts Using a Single-Antenna GPS Receiver Nov 1, 2004 →