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Robust Autopilot Desigh of BTT Missile Based on Composite Switching

Author: ZhangWeiNa
Tutor: SongShenMin
School: Harbin Institute of Technology
Course: Control Theory and Control Engineering
Keywords: BTT missile Feature configuration Fuzzy Control Multiple models switching
CLC: TJ760.35
Type: Master's thesis
Year: 2007
Downloads: 319
Quote: 0
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Abstract


BTT ( BTT ) control technology for the development of long-range , high-speed , high-precision and high mobility missile weapon system has important theoretical and practical value . And its aerodynamic shape and control characteristics determine the BTT missile is a multi- coupled multi-variable controlled object , BTT Missile Autopilot BTT missile research key issues . In this paper, the problem of the BTT missile flight trajectory parameter uncertainty , using a multi-model switching control method . Select the appropriate feature points cover the method of parameter uncertainty , the establishment of seven time-invariant sub-models , each feature point , combined with the characteristics of configuration theory and model reference tracking method , the characterization of robust stability indicators function to optimize the design of a feedback controller with feedforward controller , so that the system overload at the output tracking the customized guide instruction can meet other performance indicators and has good robustness stability . Chattering model switch and controller switching subsystems , on the basis of fuzzy PID control and multi - input multi - output fuzzy control theory is proposed to improve the control method of the combination of a fuzzy control and linear control . The switching transition segment for the scheduling variables to systematic errors , a composite control law to adjust the gain scheduling linear control law and the weight of the fuzzy control law , to achieve a smooth switching between the fuzzy controller with linear controller , weakened switch the vibration caused by the model . This paper presents a composite control method , a combination of intelligent control and modern control theory , simulation results demonstrate the sub-model controller has good robustness stability , switching controller can effectively suppress the switching jitter phenomenon of the model .

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CLC: > Industrial Technology > Arms industry > Rockets, missiles > Missile > General issues > Structure > Control mechanism
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