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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。
The synthesis of high-precision flight path data is the most important issue to be solved in the aviation safety assessment and civil aviation accident investigation. In view of the fact that the synthetic flight path using QAR data directly is not enough precision, the data is mutually exclusive and the accuracy of trajectory calculation is affected, the flight path is calculated by using the map projection method and the flight performance data integration method respectively. Based on this, Finally, the flight path is calibrated by using the geographic information data of the accurate position point in the known flight so as to realize the high-precision synthesis of the four-dimension flight path and better meet the requirements of flight accident analysis and The flight reproduces the need for high precision horizontal tracks.