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针对大部分文献的航迹仿真方法基于本地直角坐标系,以及将飞机视作点目标,未考虑其姿态的问题,提出了WGS-84(world geodetic system-84)坐标系下飞机航迹与姿态仿真方法。基于复杂航迹可由较为简单的航迹段组合的思想,推导了分段匀速直线对等海拔高度长航时圆弧航迹进行近似,以及在空间某一平面内匀速转弯航迹的一系列相关公式,并导出了飞机姿态由其速度估计的数学表达式。实现了WGS-84坐标系下飞机的长航时航迹与跑道形、“8”字形等典型航迹以及姿态的仿真。结果表明,该方法可逼真模拟飞机的航迹与姿态。
The trajectory simulation method for most of the literature is based on the local Cartesian coordinate system and the problem that the aircraft is regarded as a point target without considering the attitude of the aircraft. The trajectory and attitude of the aircraft in the WGS-84 (world geodetic system-84) Simulation method. Based on the idea of simple route track combination, the approximate circular arc trajectories of long section at constant elevation and the series of correlations of uniform track in a certain plane in space are deduced. Formula and derive the mathematical expression of the attitude of the aircraft estimated by its velocity. The simulation of longitude track, runway shape and “8” shape of the aircraft in the WGS-84 coordinate system and the simulation of the attitude are realized. The results show that this method can simulate the flight path and attitude of the aircraft.