Underwater 3D target detection: Semi-analytic Monte Carlo model and UAV-based scanning lidar systemXinke Hao, Yan He, Huixin He, Deliang Lv, Yingjie Ruan, Hui Qi, Guangxiu Xu and Junwu TangJ. Eur. Opt. Society-Rapid Publ., 22 1 (2026) 6DOI: https://doi.org/10.1051/jeos/2026001