极点约束的BTT导弹分散模糊性能控制  

Decentralized Fuzzy Control with Pole Placement Constraint for Bank-to-Turn Missile

作　　者：郭超[1] 梁晓庚[1,2] 王俊伟[3] 

机构地区：[1]西北工业大学自动化学院,陕西西安710072 [2]中国空空导弹研究院,河南洛阳471009 [3]北京航空航天大学自动化科学与电气工程学院,北京100191

出　　处：《计算机仿真》2014年第2期91-96,共6页Computer Simulation

基　　金：航空科学基金资助项目(20100196002)

摘　　要：研究导弹自动驾驶仪优化控制问题,由于倾斜转弯(BTT)导弹在飞行过程中常处于大攻角和快速滚转状态,导致通道间存在较强的非线性耦合引起系统不稳定,给自动驾驶仪设计带来了困难。针对上述问题,提出一种具有极点约束的分散模糊保性能跟踪控制器设计方法。首先BTT导弹模型可以看作非线性关联大系统,并考虑通道间的运动耦合。接着,基于BTT导弹的分散T-S模糊模型,设计一种分散控制器,不仅保证整个闭环系统稳定,且闭环极点落在复平面给定区域,同时系统的性能小于一个上界。然后,控制器设计问题可以转化为一组线性矩阵不等式(LMI)的优化问题。最后,仿真结果表明能够克服通道之间的耦合带来的影响,为提高控制器的有效性提供了依据。Because of the high angle of attack and rapid roll movement of bank - to - turn missile, the nonlinear kinematic coupling among the channels can not be ignored and brings new difficulties for the autopilot design. To solve this problem, a design method of decentralized fuzzy guaranteed cost tracking controller with pole placement constraint was proposed in this paper for bank - to - turn （BTr） missile. Initially, and the BTr missile model can be viewed as a nonlinear large - scale interconnected system, where the kinematic coupling among the channels was also considered. Then, based on the decentralized Takai -Sugeno （T -S） fuzzy model for the BTY missile, a decentral- ized fuzzy controller was developed not only to ensure the stability of the whole nonlinear interconnected system and guarantee that all the closed - loop poles reside within a given region of the complex plane, but also to provide an up- per bound of the cost function. Furthermore, the problem of the controller design was formulated as an optimization problem of a set of linear matrix inequalities （LMIs）. Finally, the simulation results show that the impact of the cou- pling among the channels can be overcome, which demonstrates the effectiveness of the proposed controller design method.

关 键 词：倾斜转弯导弹 分散保性能控制 极点约束 模糊模型 线性矩阵不等式 

分 类 号：TJ765.3[兵器科学与技术—武器系统与运用工程]