WiFi and PDR based Robust SLAM Implementation using Surface Correlation Sep 1, 2017· Beomju Shin , Boseon Yu , Jaewon Bang Changdon Kee Taikjin Lee · 0 min read Last updated on Sep 1, 2017 Authors Beomju Shin Ph.D Authors Changdon Kee Professor Authors Taikjin Lee Ph.D ← Single-frequency Divergence-free Hatch Filter for the Android N GNSS Raw Measurements Sep 1, 2017 WiFi Based Robust Positioning System in Large Scale and Weak Signal Environment Sep 1, 2017 →