基于ADS-B技術(shù)的通航飛行器風(fēng)險(xiǎn)分級(jí)方法研究
[Abstract]:With the gradual opening of low-altitude airspace in China and the rapid development of general aviation field, the flight safety problem between aircrafts becomes more and more serious. The classification of risk levels in the flight of navigable vehicles can effectively avoid flight conflicts, collisions and improve flight safety. Because of its good monitoring performance and low investment cost, ADS-B (broadcast automatic correlation Surveillance) technology, as a new navigation technology recommended by ICAO, is gradually applied in the field of general aviation. In this paper, the construction of collision model and the risk classification method for general aviation aircraft are studied under the ADS-B system. Firstly, the classical collision model of aircraft is analyzed, and the traditional EVENT model is improved to establish the longitudinal collision model of the same altitude and the same route with elliptical cylinder as the collision template, the lateral collision model of parallel route and the vertical collision model. Secondly, the parameter algorithms in the three kinds of collision models proposed are studied, and the navigation performance and monitoring performance of airborne equipment based on ADS-B are considered in the process of parameter calculation, which makes the parameter calculation more accurate. Then, taking the navigable model of Shijiazhuang aircraft Industry Co., Ltd as an example, according to the proposed parameter algorithm, the minimum safety interval of the navigable aircraft under the ADS-B system is calculated in longitudinal, lateral and vertical directions. The results of the study are in line with the flight safety indicators prescribed by ICAO. Finally, for Shijiazhuang aircraft Industry Co., Ltd. Considering the four main risk classification factors of aircraft, such as horizontal interval, vertical interval, flight track and control mode, the paper quantitatively evaluates the risk grade of aircraft by using AHP, and calculates the influence weight of each factor. Each influencing factor is classified into four levels: low risk, general risk, medium risk and significant risk. On the basis of theoretical research, a set of integrated risk avoidance equipment, which is suitable for low altitude flight under 3000 meters and based on ADS-B system, has been built, including ground integrated command platform, airborne ADS-B equipment, on-board ADS-B equipment, Airport ADS-B multi-point positioning reference station and integrated risk avoidance software system. On this basis, the comprehensive risk avoidance software system is developed twice, and the function of risk classification is added to realize the classification of the selected aircraft risk grade, and the alarm warning is made in the event of threat conflict.
【學(xué)位授予單位】:河北科技大學(xué)
【學(xué)位級(jí)別】:碩士
【學(xué)位授予年份】:2017
【分類號(hào)】:V355.1;V328
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