[6] [6] Lin qiu, Tan Honglu, et al. Performance comparison of Fabry-Perot and Mach-Zehnder interferometers for Doppler lidar based on double-edge technique - ScienceDirect［J］. Optik,2019,181(2):71-80.

[8] [8] B L Y A, B Y S A, A B W. 3D reconstruction of building facade with fused data of terrestrial LiDAR data and optical image［J］. Optik,2016,127(4):2165-2168.

[11] [11] Balado J, Arias P, Lorenzo H, et al. Disturbance analysis in the classification of objects obtained from urban LiDAR point clouds with convolutional neural networks［J］. Remote Sensing,2021,13(11):2135-2143.

[15] [15] Chen B, Shi S, Gong W, et al. Multispectral LiDAR point cloud classification: A Two-step approach［J］. Remote Sensing,2017,9(4):373.

[16] [16] Zhang W, Montgomery D R. Digital elevation model grid size, landscape representation, and hydrologic simulations［J］. Water Resources Research,1994,30(4):1019-1028.

[17] [17] Rampasek L, Goldenberg A. TensorFlow: Biology's gateway to deep learning［J］. Cell Systems,2016,2(1):12-14.

[18] [18] Qi C R, Yi L, Su H, et al. PointNet++: Deep hierarchical feature learning on point sets in a metric space［J］. Computer Vision and Pattern Recognition,2017,3(2):1-7.