航空器軌跡變點檢測與判識技術研究
發(fā)布時間:2018-03-30 08:38
本文選題:航空排放 切入點:排放監(jiān)測 出處:《中國民航大學學報》2017年04期
【摘要】:航空器飛行階段的有效劃分是支撐航空排放主動監(jiān)測的重要技術手段,采用變點檢測與判識的方法可有效地實現(xiàn)對航空器飛行階段的劃分。本研究根據(jù)多變量T~2統(tǒng)計量的特點,在數(shù)據(jù)整體參數(shù)一致性假設下,提出了一種采用順序雙滑窗的航空器軌跡變點檢測與判識的方法。仿真與實驗結(jié)果表明,該方法對窗口長度較為敏感,在適宜的窗口長度下可有效地解決軌跡的變點檢測問題。根據(jù)航空器軌跡的特點,選擇適當?shù)拇翱陂L度前提下,本方法是一種有效的變點檢測與判識方法。
[Abstract]:The effective division of aircraft flight stage is an important technical means to support the active monitoring of aviation emission. The method of change point detection and recognition can effectively realize the division of aircraft flight stage. This study is based on the characteristics of multivariable TK2 statistics. Under the assumption of the consistency of the whole data parameters, a method for detecting and identifying the change points of aircraft trajectory using sequential double sliding windows is proposed. The simulation and experimental results show that the method is more sensitive to the length of the window. The change point detection problem can be effectively solved under the appropriate window length. According to the characteristics of aircraft trajectory and the premise of selecting appropriate window length, this method is an effective variable point detection and recognition method.
【作者單位】: 中國民航大學天津市智能信號與圖像處理重點實驗室;中國民航大學中歐航空工程師學院;
【基金】:中央高;究蒲袠I(yè)務費專項(3122017111)
【分類號】:V35;X738
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本文編號:1685148
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