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对流天气下基于聚类算法的终端区交通流分析 被引量:2
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作者 姚学成 胡明华 +2 位作者 袁立罡 陈海燕 刘振亚 《航空计算技术》 2022年第3期42-46,共5页
为准确分析对流天气对终端区进场交通流的影响,提出了一种面向对流天气场景的基于轨迹聚类的进场交通流分析方法。利用卷积神经网络与K means++算法对对流天气进行特征提取和聚类;采用均匀化参数方法对进场飞行轨迹进行重采样;进而采用... 为准确分析对流天气对终端区进场交通流的影响,提出了一种面向对流天气场景的基于轨迹聚类的进场交通流分析方法。利用卷积神经网络与K means++算法对对流天气进行特征提取和聚类;采用均匀化参数方法对进场飞行轨迹进行重采样;进而采用具有噪声的基于密度的聚类算法对进场轨迹进行聚类,采用K means算法识别交通流的中心轨迹。对广州终端区历史运行数据进行实例分析,结果表明所提方法能准确识别进场轨迹与对流天气的关联性,验证了方法的有效性。 展开更多
关键词 终端区交通流 对流天气 卷积神经网络 轨迹聚类
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Air Traffic Operation Complexity Analysis Based on Metrics System
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作者 Xie hua Cong Wei +1 位作者 hu ming hua Liu Sifeng 《Transactions of Nanjing University of Aeronautics and Astronautics》 EI CSCD 2016年第4期461-468,共8页
In order to quantitatively analyze air traffic operation complexity,multidimensional metrics were selected based on the operational characteristics of traffic flow.The kernel principal component analysis method was ut... In order to quantitatively analyze air traffic operation complexity,multidimensional metrics were selected based on the operational characteristics of traffic flow.The kernel principal component analysis method was utilized to reduce the dimensionality of metrics,therefore to extract crucial information in the metrics.The hierarchical clustering method was used to analyze the complexity of different airspace.Fourteen sectors of Guangzhou Area Control Center were taken as samples.The operation complexity of traffic situation in each sector was calculated based on real flight radar data.Clustering analysis verified the feasibility and rationality of the method,and provided a reference for airspace operation and management. 展开更多
关键词 operation complexity traffic metrics kernel primary component analysis hierarchical clustering
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