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Robust Model Following Switching Control of BTT Missile
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CHI Xueqiana,WANG Qinga，HOU Yanzea,DONG Chaoyangb
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(a. School of Automation Science and Electrical Engineering; b. School of Aeronautic Science and Engineering, Beihang University, Beijing 100191, China)
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Abstract The mixed pitchyaw channel dynamic model of banktoturn (BTT) missile at one operating point was described as a linear switched system switched as the roll angle rate changes. The reference model and control law of each subsystem were designed based on the eigenstructure assignment method and the feedforward method. The different controllers can be fast switched according to the switching law determined by the roll angle rate of missile. Thus the set of different controllers can restrain the model uncertainties caused by the rapid change of roll angle rate, which means it has better robustness. To ensure the uniform boundedness of the closedloop switched system within the whole varying range of roll angle rate, a sufficient condition in the form of linear matrix inequations was deduced using the common Lyapunov function method.
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Received: 14 July 2010
Published: 28 February 2011
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