仿真飞行轨迹的设计及应用

摘要

由于全面真实的飞行轨迹数据很难获取，而捷联惯导系统性能测试又必须要有飞行轨迹数据和惯性器件的输出作为基础，为此，介绍了一种仿真飞行轨迹的设计方法，将飞机飞行过程分解为若干基本运动状态，并建立了相应的模型，可根据实际需要组合各种基本运动状态构成一条完整的飞行轨迹。据此设计了一条仿真飞行轨迹并对该轨迹进行了应用仿真。结果表明，此法不仅能够较好地模拟飞机的实际飞行状态，更能有效地测试捷联惯导算法的精确性和可靠性，应用效果令人满意%　　Comprehensive and actual flight trajectory data is difficult to obtain, while the capability test of the Strap-down inertial navigation system need these data. Therefore, a simulation algorithm of trajectory is presented, which divides flight trajectory into several basic movement conditions and their respective models are built. According to the practical condition, the basic conditions can be combined randomly to form an integrated flight trajectory. Based on this method, a simulation track is designed, and then the track performance is simulated in application. The results show that the design method can not only simulate the actual flight state of aircraft better but also test the accuracy and the reliability of strap-down inertial navigation algorithm effectively. The application effect of the method is satisfactory.