Covariance Analysis of Real-Time Precise GPS Orbit Estimated from Double-Differenced Carrier Phase ObservationsAug 1, 2019·Sunkyoung YuDonguk KimJunesol SongChangdon Kee· 0 min read DOILast updated on Aug 1, 2019 AuthorsSunkyoung YuPh.DAuthorsDonguk KimPh.DAuthorsJunesol SongPh.DAuthorsChangdon KeeProfessor Emeritus← Preliminary Test Results of Compact Wide-Area RTK: A New Satellite-Based Augmentation System for Centimeter-Level Service Sep 1, 2019Improving the Accuracy of Regional Ionospheric Mapping with Double-Difference Carrier Phase Measurement Aug 1, 2019 →