The research of 3D object detection and tracking serves the perception and understanding tasks of dynamic objects on unmanned platforms. The tracklet-based 3D object detection and tracking method (published in ICCV, CVPR, IJCAI, IEEE TITS, IEEE TGRS etc.) has ranked among the top in several international autonomous driving benchmarks, ranking first in the KITTI object tracking (1/89, 2021.1-2021.9) and ranking first in several 3D object detection tasks.