落角约束对制导精度的影响

The Influence of Falling Angle Constraint on Impact Precision

为探讨落角约束导引律与空对地制导武器的制导精度之间的关系,针对采用惯性/卫星组合导航体系的制导武器引入了带三维落角约束的导引律。采用几何分析和线性二次型问题的最优控制解相结合的方法,分别得到了脱靶量与终端落角的关系和末段需用过载与终端落角的关系。得出了落角约束制导律能够减小目标高度定位误差的影响从而提高制导精度的结论,并通过蒙特卡洛法进行了仿真验证。

To investigate the relationship between the falling angle constrained guidance law with the precision of the air-to-ground guided weapons,the three-dimensional guidance law with falling angle constrain was demonstrated.Geometric analysis methodology and the optimal solution to linear quadratic problem were presented to obtain the influence of the falling angle on the terminal guidance command and the miss distance.The Monte Carlo simulation was conducted,it was shown that falling angle constrain guidance law can mitigate the effect of height measurement error and improve the impact precision.