巡航导弹高度跟踪制导律研究

Study on height tracking guidance laws of Cruise missile

针对巡航导弹弹道对飞行高度的控制需求,提出了两种实现导弹高度跟踪的制导律模型,一种将高度控制回路转化为经典控制理论中的二阶无静差系统,通过调节系统稳定性实现高度跟踪;另一种引入速度补偿项,构建了期望高度规律与期望过载之间的非线性关系,实现高度跟踪。建立了导弹运动模型,利用典型高度规律,对所设计制导律进行数值仿真,对比分析了各自的特点。所设计的制导律已得到工程应用验证。

In this paper,two kinds of guidance laws of tracking the missile height are proposed in order to meet the demand of controlling the flying height of cruise missiles.The first one assumes that the height control loop to be a2 nd order zero-static-error system,and controls the height by adjusting the stability of the system.The second one controls the flying height by introducing velocity compensation,deriving the nonlinear relationships between the excepted height and the excepted missile overload.The missile dynamic equations are built,and the numerical simulation are given to show the characters of each law using typical height orders.Furthermore,the value of the designed guidance laws in engineering application is well proved.