NRTK PPK aided 3D modeling analysis of image free UAV tilt photogrammetry for water conservancy projects
ZHANG Linjie, HUANG Xiao, RAO Weidong, LUO Wei, ZUO Qiang, XIONG Hao, LI Wenhui
Bulletin of Surveying and Mapping . 2023, (4): 115 -120 .  DOI: 10.13474/j.cnki.11-2246.2023.0114