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A control scheme combining novel model reference adaptive control (MRAC) and neural network (NN) is proposed in this paper to achieve high tracking precision for servo systems. This scheme comprises an MRAC controller and an online NN controller in the velocity-loop and a traditional PD controller in the position-loop. For reducing influences which arose from modeling error, unknown model dynamics,...
Recently the adaptive mixing control (AMC) approach has been applied to an airbreathing hypersonic flight vehicle (AHFV) model, and simulation results demonstrate that this adaptive scheme may be capable of improving performance when compared to a non-adaptive mixed-mu design with similar objectives. In this note, the analysis of this AMC scheme's stability and robustness properties is presented,...
In this paper Hinfin loop-shaping design method as the frequency domain approach was applied to aero-engine control system to overcome the problem of lack of design transparency in the traditional time domain approaches. The controller design method should be carried out in the frequency domain, via selection of the Hinfin loop-shaping weights, open or closed-loop singular value plots were shaped...
It has long been recognized that any adaptive controller can be characterized by an admissible controller set and a data-dependent cost function that partially orders these controllers. In this talk we discuss the unfalsified control concept, which involves expressing adaptive control cost functions in terms of certain controller-dependent `fictitious' signals used to evaluate stability and performance...
A new scheme of incorporating the fault tolerance and disturbance rejection in an existing flight control system is proposed. Method to design a standalone compensator is suggested which is added to the original system in order to guarantee the system stability and performance in the presence of fault or disturbances. Thus the controller, which is designed separately considering all the design parameters...
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