L1 SFMC SBAS System to Improve the Position Accuracy of Android Device Sep 1, 2018· Cheolsoon Lim , Donghyun Shin Byungwoon Park Changdon Kee , Seungwoo Seo , Junpyo Park Am Cho · 0 min read Last updated on Sep 1, 2018 Authors Byungwoon Park Ph.D Authors Changdon Kee Professor Authors Am Cho Ph.D ← KASS 가용성 성능 평가를 위한 MATLAB GUI 기반 소프트웨어 설계 Oct 1, 2018 Performance Enhancement and Countermeasure for GPS Failure of GPS/INS Navigation System of UAV Through Integration of 3D Magnetc Vector Sep 1, 2018 →