Improving the Accuracy of Regional Ionospheric Mapping with Double-Difference Carrier Phase Measurement Aug 1, 2019· Deokhwa Han Donguk Kim Junesol Song Changdon Kee · 0 min read DOI Last updated on Aug 1, 2019 Authors Deokhwa Han Ph.D Authors Donguk Kim Ph.D Authors Junesol Song Ph.D Authors Changdon Kee Professor ← Covariance Analysis of Real-Time Precise GPS Orbit Estimated from Double-Differenced Carrier Phase Observations Aug 1, 2019 A New Method to Improve the Detection of Co-Seismic Ionospheric Disturbances using Sequential Measurement Combination Jul 1, 2019 →