طراحي کنترل‌کننده اتوپايلوت موشک به روش جدولبندي بهره فازي
محورهای موضوعی : مهندسی برق و کامپیوترعلي اکبرزاده کلات 1 , حمیدرضا مؤمنی 2
1 - دانشگاه تربيت مدرس
2 - دانشگاه تربیت مدرس
کلید واژه: جدولبندي بهره فازياتوپايلوتضرايب آيروديناميکيالگوريتم ژنتيکحداقل مربعات خطي,
چکیده مقاله :
در اين مقاله يک کنترل‌کننده به روش جدولبندي بهره فازي براي کانال‌هاي هدايتي موشک‌هاي تاکتيکي طراحي گرديده است به نحوي که در کليه شرايط پروازي پاسخ مناسبي داشته باشد. ديدگاه اين طراحي تعيين مراکز نواحي جدولبندي بهره فازي با آموزش يک سيستم فازي بر اساس اطلاعات فشار ديناميکي و سرعت موشک و ضرايب مدل خطي سيستم در سراسر نقاط کاري آن مي‌باشد. آموزش سيستم فازي با استفاده از يک روش مبتني بر ترکيب حداقل مربعات خطي و الگوريتم ژنتيک انجام مي‌شود تا هم رسيدن به بهينه کلي ميسر شود و هم سرعت همگرايي خوبي حاصل شود. به علاوه در سيستم فازي استفاده‌شده، توابع عضويت با خصوصيات مناسبي به کار گرفته مي‌شوند تا طراحي ساده‌تر و مؤثرتر انجام گيرد. کارآيي اين روش با نتايج شبيه‌سازي نشان داده مي‌شود.
In this paper a controller using fuzzy gain-scheduling for the channels of a tactical missile is designed such that in flight trajectories, performance is achieved. In this design method, the fuzzy gain-scheduling zone centers are determined by a training algorithm according to dynamic pressure, Mach number and coefficients of linear model of system in major operating points. The fuzzy system is learned using combined genetic and linear least squares algorithms. In this manner both global optimum solution and fast convergence are reachable. Moreover the membership functions in fuzzy inference system are chosen with special and suitable properties, which cause simple and effective scheduling process. Performance of this method is shown with case study simulation result.
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