Performance Evaluation of Ionosphere Modeling Using Spherical Harmonics in the Korean PeninsulaApr 1, 2013·Deokhwa HanHo YunChangdon Kee· 0 min read DOILast updated on Apr 1, 2013 AuthorsDeokhwa HanPh.DAuthorsHo YunPh.DAuthorsChangdon KeeProfessor Emeritus← “Preliminary Test Results of Pseudolite-Based Augmentation System (PBAS) Apr 1, 2013DGPS Enhancement to GPS NMEA Output Data: DGPS by Correction Projection to Position-Domain Mar 1, 2013 →