用于复合制导的变结构中制导律研究

An Investigation of Variable Structure Midcourse Guidance Law Applied to Combined Guidance

针对复合制导中的中末交班问题,应用变结构控制理论,设计了一种中制导律。该制导律能够零化速度前置角,所需法向过载小,能够很好的满足交班条件;不需要进行拦截点的预测;对于目标机动具有较强的鲁棒性;所需制导信息少,易于工程实现。仿真结果证明了所设计的制导律能够适用于远距离制导的复合制导中。

In order to solve the problem of hand-over between midcourse guidance and terminal guidance in the combined guidance, a mideourse guidance law was designed based on the variable structure control theory. This guidance law can complete midcourse-terminal handover shift well, because it can not only zeroing missile velocity deflection angle, but also effectively minish normal overload and no need for interception point foreeast. It has robust to the target maneuver. It can be realized in project easily because it needs less guidance information. Finally, simulation results show that the designed guidance law is suirable for combined guidance used to attack targets at a far distance.