esearch on Central Trajectory Extraction of Trajectory Cluster in Terminal Area
Abstract: In order to create a flight plan precisely and reduce the overload of controller, a#br# novel method of central trajectory extraction based on computational geometry is proposed.#br# Firstly, a 3D point cloud model is generated from the radar data, and then a set of sampling points#br# is calculated through an adaptive sampling method along the flight direction. The graph which is#br# established from the sampling points is optimized in the next step. Finally, the central trajectory#br# curve is generated by uniformization and smooth processings successively. Experiments on real#br# data demonstrate that the proposed method can accurately extract the central trajectory of#br# trajectory cluster in terminal area, and recognize the feature points efficiently. Meanwhile, the#br# proposed method is robust.#br# Key words: terminal area; trajectory cluster; central trajectory extraction; computational#br# geometry
Abstract：In order to create a flight plan precisely and reduce the overload of controller, a
novel method of central trajectory extraction based on computational geometry is proposed.
Firstly, a 3D point cloud model is generated from the radar data, and then a set of sampling points
is calculated through an adaptive sampling method along the flight direction. The graph which is
established from the sampling points is optimized in the next step. Finally, the central trajectory
curve is generated by uniformization and smooth processings successively. Experiments on real
data demonstrate that the proposed method can accurately extract the central trajectory of
trajectory cluster in terminal area, and recognize the feature points efficiently. Meanwhile, the
proposed method is robust.
赵元棣， 孙 禾， 王洁宁， 李 桃. 终端区航迹簇的中心航迹提取方法研究[J]. 图学学报, 2014, 35(3): 379-386.
Zhao Yuandi, Sun He, Wang Jiening, Li Tao. esearch on Central Trajectory Extraction of Trajectory Cluster in Terminal Area. Journal of Graphics, 2014, 35(3): 379-386.
