摘要
为提高旋转稳定炮弹制导精度,针对一类采用固定翼控制的双旋结构旋转稳定弹建立了七自由度运动方程,利用四自由度(4D)质点弹道模型设计了落点预测制导律,将该制导律用于旋转稳定弹修正控制,建立了Matlab/Simulink弹道模型并进行了数字仿真验证.仿真结果表明:采用落点预测制导律,旋转稳定弹圆概率误差(CEP)由235m减小到20m,落点精度明显提高,该修正控制方法有效.
To improve the precision of spin-stabilized projectile, the seven-degree-of-freedom dynamics equations were built for a type of dual-spin projectiles equipped with fixed-wing, then 4-DOF trajectory model was adopted to design impact point predication guidance law, and the guidance law was applied for trajectory correction. The trajectory simulation model in Matlab/Simulink was established and simulated. The result indicated：The CEP of spin-stabilized projectile based on impact point predication guidance law reduced to 20 m from 235 m, the precision of spin-stabilized projectile was significantly improved, which proved that the correction control method is effective.
出处
《西安工业大学学报》
CAS
2015年第10期855-860,共6页
Journal of Xi’an Technological University
关键词
落点预测
旋转稳定弹
固定翼
修正控制
impact point predication
spin-stabilized projectile
fixed-wing
correction control
