Flight data analysis is the important method in aviation safety evaluation and accident investigation. How to display the process of flight on the plane so as to analyze the situation and status of aircraft is the primary problem when conducting safety evaluation and accident investigation. This article used the method of map projection and integral of flight performance data to calculate flight track respectively based on requirement of flight safety evaluation. And then the two flight tracks were amalgamated and adjusted with situation information of flight point. By means of arithmetic described above we can draw out the flight track meeting the requirements of safety evaluation and accident investigation.%合成高精度的飞行航迹数据是航空安全评估和民航事故调查中需要解决的首要问题.针对直接使用QAR记录数据合成飞行航迹面临着精度不够、数据互斥性较大、影响轨迹计算精度的实际问题,采用地图投影方式和飞行性能数据积分方法分别计算出飞行航迹,在此基础上对航迹进行了融合计算,最后提出利用已知飞行中的准确位置点地理信息数据对飞行航迹进行校准,实现对四维飞行航迹的高精度合成,较好地满足了飞行事故分析和飞行过程再现对高精度水平航迹的需要.
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