PPK PROCESSING TO BOOST UAS ACCURACY IN CADASTRAL MAPPING

Abstract. Unmanned Aerial Systems (UAS) are increasingly used in different applications, including 3D urban modelling, cadastral mapping, planning, GIS information system and other fields because of their advantages. As a consequence, UAS equipment is constantly developed to provide more accurate results reliable mode. This paper aims evaluate the performances low-cost system, namely DJI Phantom 4 Pro v2 equipped with TeoKIT GNSS PPK (post-processing kinematic) module for mapping purposes. Two fights (oblique nadir) over residential area at 60 m height were performed some 100 ground points derive RMSE accuracies. Comparison between GNSS-aided processing indirect georeferencing processes performed. Given mobile laser scanner (MLS) point cloud as truth, comparison clouds manually digitized features also reported.