Variable structure guidance law for attacking surface maneuver targets

The characteristics of surface maneuver targets are analyzed and a 3-D relative motion model for missiles and targets is established. A variable structure guidance law is designed considering the characteristics of targets. In the guidance law, the distance between missiles and targets as well as the missile-target relative velocity are all substituted by estimation values. The estimation errors, the target＇s velocity, and the maneuver acceleration are all treated as bounded disturbance. The guidance law proposed can be implemented conveniently in engineering with little target information. The performance of the guidance system is analyzed theoretically and the numerical simulation result shows the effectiveness of the guidance law.

针对目标机动的变结构制导参数设计

目标机动是影响导弹制导性能的重要因素。文章以变结构制导导弹为研究对象,以导弹与目标相对运动方程为依据,就目标机动和变结构制导项对视线角速度和弹道需用过载的影响做了理论分析,提出了一种针对目标机动的变结构制导参数设计方法。在此基础上,提出用模糊控制理论设计变结构制导项。仿真结果表明,所设计的模糊变结构制导律能够有效抑制目标机动对制导精度的影响。

基于变结构控制理论的某型导弹平滑导引律研究

基于变结构控制理论,提出了一种设计简单、具有很好鲁棒性及准确性的平滑导引律,解决了某型导弹因采用变结构导引律攻击机动目标时,视线倾角增量变化律的来回切换产生抖动的缺陷。