空地导弹弹道增程方案设计

针对空地导弹直线对准弹道方案,采用优化初始航迹角的方法得到满足终端速度约束的弹道;最大射程飞行方案采用控制迎角的方法使航程最大,采用多项式样条插值的方法来估计迎角变化规律,用遗传算法优化采样点的参数,得到了满足终端速度约束的最大射程。通过算例对比可知,最大射程飞行方案的射程比直线对准飞行方案提高了三倍多。研究结果对空地导弹的标准弹道设计有一定的参考价值。

The Scheme Design of Extended-Range Trajectory for Air to Surface Missile

Based on an air-to-surface missile's mathematical model,linear collimation flight scheme and maximum range flight scheme were brought forward.The linear collimation flight scheme was obtained by optimizing the initial flight path angle.According to the maximum range scheme,firstly the history of attack angle was described by a cubic spline interpolation,and then the maximum range was obtained by optimizing parameters of sampling data of cubic spline by the genetic algorithm.From the numerical case we can see that the range of the second flight scheme is three times longer than that of the linear collimation flight scheme.So the maximum range flight scheme is valuable to the extended-range trajectory design for air-to-surface missiles.