基于模糊滑模方法的双舵控制导弹制导控制一体化

针对单舵控制导弹舵角在大攻角下易饱和的问题, 提出一种适用于双舵控制导弹的制导控制一体化模糊滑模方法. 分析具有鸭舵/尾舵结构导弹动力学特性, 建立制导控制一体化模型, 利用双滑模变结构控制方法, 分别选取零控脱靶量和控制相关量作为滑动模态, 前者保证脱靶量趋于零, 后者提供阻尼响应, 将制导律嵌入在控制器的设计之中. 为了克服滑模抖振问题, 利用指数趋近率方法设计控制器, 并将模糊环节加入控制器中. 最后, 对拦截蛇形机动目标的过程进行仿真, 仿真结果验证了所提出方法的有效性.

Integrated fuzzy sliding mode control-guidance for dual-control missiles

An integrated fuzzy sliding mode control-guidance method is developed for a missile with the dual-control configuration for the problem that the canard control may saturate at high angles of the attack, The model of the integrated guidance and control system is derived, and the dynamics for a missile with canard/tail control fins are analyzed. By using the double-sliding modes variable structure control theories, zero effort miss and a variable related to autopilot parameter are selected as two sliding surfaces. The former guarantees zero-miss distance, the latter provides a damped response, and the controller and guidance are integrated. A fuzzy link is added to the design of the controller based on the exponential reaching law method to avoid the chattering problem in sliding mode control. Finally, the simulation of the interception is carried out when the target does snake maneuver, and the results show the effectiveness of the proposed method.