最优滑模变结构末制导律设计

Design of Optimal Slide Mode Variable Structure Guidance Law

滑模变结构控制理论应用于制导律设计可提高制导过程的鲁棒性,但它没有考虑制导过程的最优性指标,如能量最小等。针对此缺陷,在制导律设计时,结合最优控制和滑模变结构的优点,推导出一种新的鲁棒制导律。仿真结果表明,所得制导律具有良好的性能,具有一定的应用价值。

The robustness of the guidance law can be enhanced when the slide mode variable structure （SMVS） is applied to design of the guidance law, but the optimal performance indexes such as energy are not considered. According to the limitation of the SMVS, a new guidance law was proposed, which absorbs the advantage of both optimal control and SMVS. The simulation results show that the guidance law is featured with good performance and application value.