摘要
针对划设机场容量包络曲线存在的问题,提出运用ABOD(Angle-based Outlier Detection)算法来划设容量包络曲线。上述方法通过计算反映数据点离群程度大小的ABOF(Angle-based Outlier Factor)值,返回根据ABOF值排序的点列表,依据ABOF值的波动情况确定离群值的范围,经插值后再由凸包算法勾划容量包络曲线轮廓。以重庆江北国际机场小时进离场架次数据做仿真分析,基于ABOD算法绘制得到六个月份的机场容量包络曲线,与基于频率阈值划设方法相比,上述方法所得不同月份的包络曲线差异更小。结果表明:应用ABOD算法划设所得容量包络曲线鲁棒性更好,能够更加真实地反映机场容纳运行航班架次的能力,对于空管人员进一步评估、优化机场容量具有重要意义。
For the shortcomings of the designing method of capacity envelope curve, the ABOD(Angle-based Outlier Detection) algorithm was used to design the capacity envelope curve. Through calculating ABOF values which can reflect outlier degree of data points, a list of points sorted by ABOF value was returned, and the scope of the outliers was determined according to the volatility of ABOF value, then capacity envelope curve contour was designed by convex hull algorithm after interpolation. Simulation analysis was made based on the data of inbound and outbound flights per hour of Chongqing Jiangbei International Airport, the airport capacity envelope curve of six months was drawn based on the ABOD algorithm. The envelope curve of different months obtained by this method with less different than that of the frequency threshold method. The results show that the capacity envelope obtained by the ABOD algorithm is more robust and can more accurately reflect the capacity of the airport to accommodate operational flights, which is of great significance for air traffic controllers to further evaluate and optimize the capacity of the airport.
作者
沈笑云
陈泰安
吴世桂
张洁
SHEN Xiao-yun;CHEN Tai-an;WU Shi-gui;ZHANG Jie(Tianjin Key Lab for Advanced Signal Processing,Civil Aviation University of China,Tianjin 300300,China;Department of Aviation Management,Chongqing Airport Group Co.Ltd,Chongqing 400000,China)
出处
《计算机仿真》
北大核心
2022年第4期41-45,56,共6页
Computer Simulation
基金
国家自然科学基金委员会-中国民航局民航联合研究基金(U1533115)。
关键词
机场容量
包络曲线划设
基于角度的异常检测
凸包算法
Airport capacity
Capacity envelope designing
Angle-based outlier detection
Convex hull algorithm
