Shin Beom Ju Lee, Seok Kim Chulki KIM, JAE HUN Changdon Kee Lee Taikjin 2024-01-12T16:34:42Z 2024-01-12T16:34:42Z 2021-09-29 https://pubs.kist.re.kr/handle/201004/91640 English Indoor navigation pedestrian dead reckoning motion recognition artificial neural network Smartphone based 3D PDR System Development and its Performance Analysis in Various Indoor Environment Conference 1 ISGNSS 2014 ISGNSS 2014 ZZZ