制导航空弹药有控弹道的校核和验证

Verification and Validation of Controlled Trajectory for Guided Air Ammunition

利用控制弹道对弹体模型进行校核的难点在于必须充分考虑控制系统操舵对弹体运动产生的影响,针对制导弹药靶试试验过程中出现了升阻比小的现象,文中充分利用观测数据,采用统计的方法对弹体的升力系数、阻力系数和升阻比进行了计算,对三个通道的干扰力矩进行了辨识,数学仿真的弹道和实际的靶试弹道吻合得比较好。

The difficulty of verification for aircraft model using controlled trajectory is that the influence of steer for the movement must be fully taken into consideration. For the problem of lack of lifting during some guided air ammunition＇s experiments flight. Fully using all the measured data, the statistical methods are used to calculate the lifting coefficient, the friction coefficient and the ratio between them. And the disturbing moments of the three channels are recognized. The trajectory of digital simulation agrees with that of the actual flight test very well.