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IET Control Theory & Applications

Issue 12 • Date December 2008

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Displaying Results 1 - 8 of 8
  • New improved delay-dependent H filter design for uncertain neutral systems

    Publication Year: 2008, Page(s):1033 - 1043
    Cited by:  Papers (5)
    IEEE is not the copyright holder of this material | Click to expandAbstract | PDF file iconPDF (284 KB)

    The problem of a robust delay-dependent filter design for linear continuous-time neutral systems subject to uncertain mixed delays and time-invariant parameters is discussed. The uncertain parameters appear affinely in all system matrices and are assumed to belong to a given polytope. A general linear filter is proposed to guarantee that the induced L2-norm of the filtering error system... View full abstract»

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  • Time domain sinusoidal acceleration controller for an electrodynamic shaker

    Publication Year: 2008, Page(s):1044 - 1053
    Cited by:  Papers (8)
    IEEE is not the copyright holder of this material | Click to expandAbstract | PDF file iconPDF (671 KB)

    A digital acceleration controller for sine vibration testing using electrodynamic shakers is presented. The control purpose is to reproduce a specified acceleration profile at the shaker table close to the device under test (magnitude and frequency). The difficulty in sine testing is that the load dynamics are unknown and can severely modify the shaker response. Since a logarithmic frequency sweep... View full abstract»

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  • Robust fuzzy-neural sliding-mode controller design via network structure adaptation

    Publication Year: 2008, Page(s):1054 - 1065
    Cited by:  Papers (3)
    IEEE is not the copyright holder of this material | Click to expandAbstract | PDF file iconPDF (715 KB)

    A robust fuzzy-neural sliding-mode control (RFSC) scheme for unknown nonlinear systems is proposed. The RFSC system is composed of a computation controller and a robust controller. The computation controller containing a self-structuring fuzzy-neural network (SFNN) identifier is the principle controller, and the robust controller is designed to achieve L 2 tracking performance. T... View full abstract»

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  • Adaptive neural-networks-based fault detection and diagnosis using unmeasured states

    Publication Year: 2008, Page(s):1066 - 1076
    Cited by:  Papers (6)
    IEEE is not the copyright holder of this material | Click to expandAbstract | PDF file iconPDF (226 KB)

    Fault detection and diagnosis play important roles in modern engineering systems. A number of fault diagnosis (FD) approaches for nonlinear systems have been proposed. But, most of the achievements are based on the assumptions that the systems models are known, and states of systems are measurable. A novel FD architecture for a class of unknown nonlinear systems with unmeasured states has been inv... View full abstract»

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  • Formation control of multiple underactuated surface vessels

    Publication Year: 2008, Page(s):1077 - 1085
    Cited by:  Papers (8)
    IEEE is not the copyright holder of this material | Click to expandAbstract | PDF file iconPDF (286 KB)

    The formation control of a group of underactuated surface vessels has been considered. With the aid of results from graph theory, cooperative control laws are proposed using the relative information between neighbors. The proposed control laws can make a group of surface vessels converges to a desired stationary formation and have the same orientations. Stability of the closed-loop system with tim... View full abstract»

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  • Bifurcations in iterative decoding and root locus plots

    Publication Year: 2008, Page(s):1086 - 1093
    IEEE is not the copyright holder of this material | Click to expandAbstract | PDF file iconPDF (311 KB)

    A class of error correction codes called dasialow-density parity-check (LDPC)dasia codes have been the subject of a great deal of recent study in the coding community as a result of their ability to approach Shannondasias fundamental capacity limit. Crucial to the performance of these codes is the use of an dasiaiterativedasia decoder. These iterative decoders are effectively high-dimensional, non... View full abstract»

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  • New approach to stabilisation of networked control systems with time-varying delays

    Publication Year: 2008, Page(s):1094 - 1104
    Cited by:  Papers (10)
    IEEE is not the copyright holder of this material | Click to expandAbstract | PDF file iconPDF (302 KB)

    The stabilisation problem is studied for networked control systems (NCSs) with time-varying delays that may be longer than one sampling period. State feedback controllers are considered and the resulting closed-loop NCS is modelled as a discrete-time switched system. Criteria for exponential stability for the closed-loop NCS and design procedures for stabilising controllers are presented by using ... View full abstract»

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  • Robust control for regenerative braking of battery electric vehicle

    Publication Year: 2008, Page(s):1105 - 1114
    Cited by:  Papers (9)  |  Patents (1)
    IEEE is not the copyright holder of this material | Click to expandAbstract | PDF file iconPDF (526 KB)

    Regenerative braking is an effective way to extend the driving range of a battery electric vehicle (BEV). First, the electrical circuit and principle are depicted in detail. Then, the mathematical model is derived step by step, based on parameter perturbation. Combining the merits and defects of H 2 optimal control and H infin robust control, a robust H ... View full abstract»

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IET Control Theory & Applications is devoted to control systems in the broadest sense, covering new theoretical results and the applications of new and established control methods.

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