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《Science of Surveying and Mapping》 2015-01
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Aerodrome obstacles assessment based on World Wind

SHEN Xiao-yun;ZHANG Hai-feng;JIAO Wei-dong;Tianjin Key Lab for Advanced Signal and Image Processing,Civil Aviation University of China;  
Considering the effect of obstacles on flight safety,a method of obstacles assessment based on World Wind(WW)was proposed in the paper.Firstly,according to the requirements of the airport environment and flight procedure design,the mathematical model of the Obstacle Assessment Surface(OAS)was established,and the given obstacle data was analyzed and calculated.Secondly,by developing the secondary development functions of WW,the three-dimensional visualization of the relationship between obstacles and the OAS was presented,combining with objective data analysis and three-dimensional simulation results,an assessment report was given.Finally,the effect of obstacles shielding on specified navigation station signal coverage was analyzed,and assessing to obstacles was finished further.Taking the airport of Tianjin as a case study,it was proved that the results of obstacles evaluation were consistent with the results of ICAO professional software,but were more convenient and intuitive.Moreover,through researching the influence of obstacles on DME station signal,the effective coverage could be given accurately.
【Fund】: 国家自然科学基金委员会与中国民用航空局联合项目(61079009);; 中央高校基本科研业务费支持项目(ZXH2009B008)
【CateGory Index】: V351;V328
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