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of Midcourse Guidance Laws via a Combination of Fuzzy and SMC Approaches
Yew-Wen Liang,Chun-Hone Chen,Der-Cherng Liaw,Shih-Tse Chang,Sheng-Dong Xu 제어·로봇·시스템학회 2010 International Journal of Control, Automation, and Vol.8 No.2
Issues regarding the design of midcourse guidance laws for antimissiles are addressed. The antimissile is expected to be guided to a place with a desired direction, where a ballistic missile is predicted to pass in the reverse direction, so that the target can be easily found and locked for terminal interception. The predicted location and direction of a ballistic missile may vary with time, due to information update using a trajectory prediction algorithm. To fulfill the guidance performance, the guidance laws are designed by combining the Takagi-Sugeno (T-S) fuzzy approach and the Sliding Mode Control (SMC) technique. Under the designed guidance law, it is shown that the antimissile is able to be efficiently guided to a specified location and direction, even when the existence of uncertainties and disturbances.