發(fā)布時間：2018-04-29 15:41

  本文選題：自由飛行 + 碰撞風(fēng)險��； 參考：《中國民航大學(xué)》2017年碩士論文

【摘要】：本文主要研究了自由飛行下基于CNS性能的多機碰撞風(fēng)險評估問題。自由飛行能夠提高空域容量,緩解空域擁擠問題。保障自由飛行下航空器的安全運行,需要研究航空器的碰撞風(fēng)險問題。本文總結(jié)了自由飛行的國內(nèi)外研究現(xiàn)狀,對自由飛行中定位誤差的影響因素進行分析,并以定位誤差為基礎(chǔ),建立多機碰撞風(fēng)險模型。工作內(nèi)容如下:(1)考慮CNS性能為航空器定位誤差的主要影響因素,根據(jù)誤差隨時間的變化規(guī)律,將由誤差導(dǎo)致的航空器運動確定為布朗運動。針對高交通密度的空域環(huán)境,分別在水平和垂直投影面建立基于定位誤差的多機碰撞風(fēng)險模型。利用梯形法對模型進行求解,通過模型參數(shù)的變化得出對碰撞風(fēng)險的影響規(guī)律。(2)考慮自由飛行的運行環(huán)境,對航空器定位誤差的影響因素進行綜合分析,利用慣性導(dǎo)航系統(tǒng)(INS)和全球定位系統(tǒng)(GPS)技術(shù)互補的特點,對航空器定位誤差進行聯(lián)合修正,得到修正后的定位誤差隨時間的變化規(guī)律。以上文中水平投影面的碰撞風(fēng)險模型為基礎(chǔ),建立自由飛行下基于航空器定位誤差修正的多機碰撞風(fēng)險模型。利用算例證明誤差修正后碰撞風(fēng)險模型較好。(3)考慮CNS性能對航空器定位誤差的影響因素,根據(jù)多架航空器的運行狀況,利用幾何原理把兩架航空器的沖突區(qū)域拓展成適用于高交通密度的凸多邊形沖突區(qū)域,據(jù)此建立多機碰撞風(fēng)險模型。通過算例分析得到不同間距下航空器的碰撞風(fēng)險,根據(jù)給定安全目標(biāo)水平確定最小安全間距。
[Abstract]:In this paper, the problem of multi-aircraft collision risk assessment based on CNS performance in free flight is studied. Free flight can improve airspace capacity and alleviate the problem of airspace congestion. To guarantee the safe operation of aircraft under free flight, it is necessary to study the collision risk of aircraft. This paper summarizes the research status of free flight at home and abroad, analyzes the influencing factors of positioning error in free flight, and establishes a multi-aircraft collision risk model based on positioning error. The work is as follows: 1) considering the performance of CNS as the main influencing factor of aircraft positioning error, according to the rule of error with time, the aircraft motion caused by error is determined as Brownian motion. Aiming at the high traffic density spatial environment, a multi-plane collision risk model based on location error is established on the horizontal and vertical projection planes respectively. The trapezoidal method is used to solve the model, and the influence law on collision risk is obtained by changing the parameters of the model. (2) considering the operating environment of free flight, the influencing factors of aircraft positioning error are comprehensively analyzed. Based on the complementary features of inertial navigation system (ins) and GPS (Global Positioning system (GPS)), the joint correction of aircraft positioning error is carried out, and the change rule of the corrected positioning error with time is obtained. Based on the collision risk model of horizontal projection plane in the above paper, a multi-aircraft collision risk model based on aircraft positioning error correction under free flight is established. An example is used to prove that the collision risk model after error correction is better. (3) considering the influence factors of CNS performance on the positioning error of aircraft, according to the operation condition of multiple aircraft, The collision area of two aircraft is extended to a convex polygon conflict area with high traffic density by using geometric principle, and a multi-aircraft collision risk model is established. The collision risk of aircraft with different spacing is obtained by example analysis, and the minimum safety distance is determined according to the given safety target level.
【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】：V328

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本文編號：1820558