本文選題：空中交通管理 + 雷暴天氣��； 參考：《中國民航大學(xué)》2017年碩士論文

【摘要】：雷暴天氣會(huì)威脅飛行安全,影響航班正點(diǎn)率。實(shí)施改航飛行可以安排航空器繞過飛行限制區(qū)。本文首先對雷暴天氣下飛行限制區(qū)的劃設(shè)進(jìn)行研究,然后以此為基礎(chǔ)建立了不同雷暴天氣下的改航模型,最后針對航線交叉點(diǎn)受雷暴天氣影響建立改航模型。1.提出基于馬爾科夫鏈的飛行限制區(qū)劃設(shè)模型。通過直接處理雷暴圖,解析出雷暴的邊界,基于馬爾科夫狀態(tài)轉(zhuǎn)移矩陣來模擬雷暴的運(yùn)動(dòng)和變化情況,求解出動(dòng)態(tài)飛行限制區(qū),為不同雷暴天氣下的改航模型做基礎(chǔ)。2.塊狀雷暴分為單體雷暴和超單體雷暴。針對單體雷暴下的改航問題,首先建立動(dòng)態(tài)危險(xiǎn)天氣模型,在選定的改航區(qū)域內(nèi),考慮改航航線整體的危險(xiǎn)系數(shù),改航過程中的轉(zhuǎn)彎角度,以及改航航線的長度,尋求最佳的改航點(diǎn)。針對超單體雷暴的持續(xù)時(shí)間長,覆蓋面積大的特點(diǎn),建立動(dòng)態(tài)多邊形模型,并且考慮到改航的可行性和便捷性,以最短航段距離和最大轉(zhuǎn)彎角度為限制條件,從設(shè)置的改航點(diǎn)中,尋找最佳改航路徑。3.不規(guī)則多單體雷暴分為弓形雷暴和散點(diǎn)狀雷暴。針對弓形雷暴,首先在飛行限制區(qū)頂點(diǎn)處設(shè)置限制圓,通過航空器與圓動(dòng)態(tài)相切,規(guī)劃出不同情況下的改航路徑。針對散點(diǎn)狀雷暴天氣,首先建立航空器與危險(xiǎn)天氣的接近風(fēng)險(xiǎn)模型,以此為基礎(chǔ),通過求解航空器與危險(xiǎn)天氣的接近風(fēng)險(xiǎn)和距離變化情況,確定改航航向和飛行時(shí)間,建立基于安全性的改航模型。4.針對雷暴天氣在交叉航線附近出現(xiàn),以單架航空器改航模型為基礎(chǔ),生成初始改航航線,再考慮可能發(fā)生的飛行沖突,對改航航線進(jìn)行修正,從而確定新的改航路線。
[Abstract]:Thunderstorms can threaten flight safety and affect flight punctuality. Aircraft may be arranged to circumvent the flight limit area. In this paper, the establishment of flight limit zone under thunderstorm weather is studied, and then the rerouting model of different thunderstorm weather is established. Finally, the rerouting model is established for the route intersection affected by thunderstorm weather. Based on Markov chain, a model of flight restricted zone allocation is proposed. By processing the thunderstorm graph directly, the boundary of thunderstorm is analyzed. Based on Markov state transition matrix, the motion and variation of thunderstorm are simulated, and the dynamic flight limit zone is solved. Massive thunderstorms are divided into monolithic thunderstorms and supermonomeric thunderstorms. In view of the problem of rerouting under single thunderstorm, the dynamic dangerous weather model is first established. In the selected rerouting area, the risk coefficient of the whole route, the turning angle during the course of the rerouting, and the length of the rerouting course are considered. Look for the best change point. In view of the long duration and large coverage of supercell thunderstorms, a dynamic polygonal model is established. Considering the feasibility and convenience of rerouting, the shortest segment distance and the maximum turning angle are taken as the limiting conditions. From the set of change point, find the best route. 3. Irregular multi-cell thunderstorms are divided into bow thunderstorms and scattered point thunderstorms. In view of the bow thunderstorm, the restricted circle is first set at the top of the restricted zone, and the changing route of the aircraft under different conditions is planned by means of the dynamic tangent of the aircraft and the circle. In the light of scattered point thunderstorm, the approach risk model between aircraft and dangerous weather is established at first. Based on this model, the change course and flight time are determined by solving the close risk and distance change between aircraft and dangerous weather. Build a safety-based model. 4. In view of the thunderstorm appearing near the cross route, based on the single aircraft reroute model, the initial route change is generated, and then the possible flight conflict is considered to modify the route to determine the new route.
【學(xué)位授予單位】：中國民航大學(xué)
【學(xué)位級別】：碩士
【學(xué)位授予年份】：2017
【分類號(hào)】：V355;V321.228

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本文編號(hào)：2049148