三维末制导律的鲁棒动态逆设计方法研究

考虑到真实的导弹目标拦截都是在三维环境下进行的,因此在三维球坐标系下建立了导弹目标的相对运动学方程。针对方程中的强非线性因素和不确定因素,基于零化导弹目标视线转率的思想,应用动态逆方法设计了鲁棒的末制导律。在该制导律的设计过程中不进行小角度假设,不进行剩余时间的计算。仿真结果表明该制导律能够对付一定的目标机动,且脱靶量小。

Designing method of robust dynamic inversion for 3-D terminal guidance law

Considering the missile-target intercepting in reality is always under the three dimensional environment,so the equation of missile-target relative motion is eastablished in three dimensional spherical coordinates.Due to the strong nonlinearity and uncertainty factors,based on the idea of zeroing normal speeds of LOS(line of sight),a robust terminal guidance law is designed by the method of dynamic inversion.During the course of designing,there is no hypothesis of small angle and no computation of time-to-go.By the simulation,the result shows the guidance law can deal with some target maneuver with small missing distance and has some worthy for use.