欢迎访问《图学学报》
分享到：
摘 要：为了有助于飞行计划的准确制定和管制员工作负荷的减轻，提出了一种#br# 基于计算几何的中心航迹提取方法。首先由雷达航迹数据生成三维点云模型，然后沿飞行方#br# 向对原始点云进行自适应采样，接下来利用采样得到的代表点集建立图结构并进行优化，最#br# 后先后通过均匀化处理以及光滑处理，生成最终的中心航迹曲线。真实数据的实验结果表明：#br# 该方法能够准确地提取终端区航迹簇的中心航迹，并有效识别其特征点，同时本文方法具有#br# 一定的鲁棒性。#br# 关 键 词：终端区；航迹簇；中心航迹提取；计算几何
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
摘要： 为了有助于飞行计划的准确制定和管制员工作负荷的减轻，提出了一种
基于计算几何的中心航迹提取方法。首先由雷达航迹数据生成三维点云模型，然后沿飞行方
向对原始点云进行自适应采样，接下来利用采样得到的代表点集建立图结构并进行优化，最
后先后通过均匀化处理以及光滑处理，生成最终的中心航迹曲线。真实数据的实验结果表明：
该方法能够准确地提取终端区航迹簇的中心航迹，并有效识别其特征点，同时本文方法具有
一定的鲁棒性。
