TY - JOUR A1 - Tang, Y. T. A1 - Kuo, Y. T. A1 - Liao, J. K. A1 - Chiang, K. W. T1 - IMPROVED INDOOR POSITIONING USING BLE DIFFERENTIAL DISTANCE CORRECTION AND PEDESTRIAN DEAD RECKONING JO - Int. Arch. Photogramm. Remote Sens. Spatial Inf. Sci. J1 - ISPRS-Archives VL - XLIII-B1-2020 SP - 193 EP - 198 Y1 - 2020/08/06 PB - Copernicus Publications SN - 2194-9034 UR - https://isprs-archives.copernicus.org/articles/XLIII-B1-2020/193/2020/ L1 - https://isprs-archives.copernicus.org/articles/XLIII-B1-2020/193/2020/isprs-archives-XLIII-B1-2020-193-2020.pdf DO - 10.5194/isprs-archives-XLIII-B1-2020-193-2020 ER -