Performance Enhancement and Countermeasure for GPS Failure of GPS/INS Navigation System of UAV Through Integration of 3D Magnetc VectorSep 1, 2018·Heekwon NoJunesol SongJungbeom KimYonghwan BaeChangdon Kee· 0 min readLast updated on Sep 1, 2018 AuthorsHeekwon NoPh.DAuthorsJunesol SongPh.DAuthorsJungbeom KimPh.DAuthorsYonghwan BaePh.DAuthorsChangdon KeeProfessor Emeritus← L1 SFMC SBAS System to Improve the Position Accuracy of Android Device Sep 1, 2018Precise Localization Technology of Mobile Phone on a Vehicle in Tunnel using LTE Signal Based Surface Correlation Sep 1, 2018 →