A Study on Ionospheric Pierce Point Search Algorithm for Performance Improving the SBAS Ionospheric Delay Correction in the Korean Region Dec 1, 2017· Donguk Kim Deokhwa Han Changdon Kee , Seungwoo Seo , Junpyo Park · 0 min read Last updated on Dec 1, 2017 Authors Donguk Kim Ph.D Authors Deokhwa Han Ph.D Authors Changdon Kee Professor ← New Compensation Method of Magnetometer Time-varying Bias for UAV Jan 1, 2018 Development of SBAS Simulation Software for Analysis of KASS Availability Performance Dec 1, 2017 →