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IEE Proceedings D - Control Theory and Applications

Issue 5 • Date Sept. 1991

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Displaying Results 1 - 14 of 14
  • Fully decentralised algorithm for multisensor Kalman filtering

    Publication Year: 1991, Page(s):413 - 420
    Cited by:  Papers (75)
    IEEE is not the copyright holder of this material | Click to expandAbstract | PDF file iconPDF (972 KB)

    An algorithm that achieves complete decentralisation of the Kalman filter algorithm amongst the sensing nodes of a multisensor system is preserved. This algorithm does not require any form of central processing facility or centralised communications medium. Each sensing node implements its own local Kalman filter to arrive at a partial decision which it then broadcasts to every other node. Each no... View full abstract»

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  • Design and implementation of self-tuning active noise control systems

    Publication Year: 1991, Page(s):421 - 430
    Cited by:  Papers (8)
    IEEE is not the copyright holder of this material | Click to expandAbstract | PDF file iconPDF (1083 KB)

    A design method is presented for active noise control (ANC) systems, in a three-dimensional nondispersive propagation medium with compact broadband noise sources. The design and implementation of the controller as a digital filter with a fixed transfer function is presented and verified through a set of practical experiments. The concept of self-tuning control as a combination of system identifica... View full abstract»

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  • Neural networks for nonlinear internal model control

    Publication Year: 1991, Page(s):431 - 438
    Cited by:  Papers (100)  |  Patents (12)
    IEEE is not the copyright holder of this material | Click to expandAbstract | PDF file iconPDF (685 KB)

    A novel technique, directly using artificial neural networks, is proposed for the adaptive control of nonlinear systems. The ability of neural networks to model arbitrary nonlinear functions and their inverses is exploited. The use of nonlinear function inverses raises questions of the existence of the inverse operators. These are investigated and results are given characterising the invertibility... View full abstract»

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  • Design of integral variable structure controller and application to electrohydraulic velocity servosystems

    Publication Year: 1991, Page(s):439 - 444
    Cited by:  Papers (58)
    IEEE is not the copyright holder of this material | Click to expandAbstract | PDF file iconPDF (415 KB)

    An integral variable structure controller (IVSC) for robust servotracking is proposed. It comprises an integral controller, which is designed for achieving zero steady-state error under step input, and a variable structure controlled (VSC) which is designed for enhancing robustness. A procedure is developed for determining the coefficients of the switching plane and the integral control gain such ... View full abstract»

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  • Adaptive control of plants using all-zero model for dead-time identification

    Publication Year: 1991, Page(s):445 - 452
    IEEE is not the copyright holder of this material | Click to expandAbstract | PDF file iconPDF (762 KB)

    In the design of identification algorithms, the dead-time is usually modelled by some form of a polynomial function that adequately approximates the dead-time behaviour over relevant frequency bands. The application of all-zero models for approximation of plant dead-times is discussed. A gain-error criterion is established for a general model, whereas a phase-error criterion is presented for first... View full abstract»

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  • Decoupling of descriptor systems

    Publication Year: 1991, Page(s):453 - 459
    IEEE is not the copyright holder of this material | Click to expandAbstract | PDF file iconPDF (469 KB)

    Using the descriptor standard form, the decoupling problem of the descriptor system by state feedback is studied. The descriptor system is first transformed in controller form and the necessary and sufficient conditions of the descriptor system to be integrator decoupled are obtained. Then, these conditions are shown to be necessary and sufficient for the closed-loop system poles to be assigned wh... View full abstract»

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  • Robust low order dynamic controller for flexible spacecraft

    Publication Year: 1991, Page(s):460 - 468
    IEEE is not the copyright holder of this material | Click to expandAbstract | PDF file iconPDF (729 KB)

    The design of an optimal low-order dynamic controller with a-shift (alpha-shift) for attitude control is attempted for a flexible satellite which is a solar electric propulsion spacecraft. The satellite consists of a central rigid body to which two flexible solar panels are attached. The design of a third-order dynamic controller is accomplished using modified linear quadratic Gaussian theory. The... View full abstract»

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  • Sliding mode control of remotely operated vehicles for horizontal plane motions

    Publication Year: 1991, Page(s):469 - 473
    Cited by:  Papers (3)
    IEEE is not the copyright holder of this material | Click to expandAbstract | PDF file iconPDF (459 KB)

    The dynamic equations of remotely operated vehicle (ROV) motions in deep water exhibit a highly nonlinear nature. Some of these nonlinearities are simplified for the ease of modelling and only motion in the horizontal plane is considered. A variable structure system (VSS)/sliding mode control (SMC) application is pursued as the control strategy. A variety of parametric selections are made to form ... View full abstract»

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  • Petri nets based approach to software development for real-time control

    Publication Year: 1991, Page(s):474 - 478
    Cited by:  Papers (4)
    IEEE is not the copyright holder of this material | Click to expandAbstract | PDF file iconPDF (568 KB)

    An approach to software development for real-time control is presented. The Petri nets formalism is used in the specification phase to describe the concurrency and synchronisation aspects of the software environment. Then the resulting Petri net model is implemented by means of a data driven architecture and can be based on any standard high-level language. The software development procedure descr... View full abstract»

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  • Robust H/sub infinity / control for class of uncertain linear time-invariant systems

    Publication Year: 1991, Page(s):479 - 483
    Cited by:  Papers (6)
    IEEE is not the copyright holder of this material | Click to expandAbstract | PDF file iconPDF (525 KB)

    The problem of robust state feedback H/sub infinity / control design for a class of linear time-invariant systems with parameter uncertainty in the state space model is investigated. Uncertain systems with time-invariant norm-bounded parameter uncertainty in the state matrix are considered. A state feedback control design which robustly stabilises the plant and guarantees a robust H/sub infinity /... View full abstract»

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  • Robust identification of stochastic linear systems with correlated noise

    Publication Year: 1991, Page(s):484 - 492
    Cited by:  Papers (22)
    IEEE is not the copyright holder of this material | Click to expandAbstract | PDF file iconPDF (875 KB)

    The normal least-squares (LS) approach is one of the most simple and powerful identification methods widely used. Unfortunately, direct implementation of the LS method can give rise to biased or nonconsistent estimates of system parameters in the presence of correlated disturbances. In this paper, an up-to-date LS based identification approach is introduced to obtain consistent parameter estimates... View full abstract»

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  • Controller design of multivariable variable structure systems with nonlinear switching surfaces

    Publication Year: 1991, Page(s):493 - 499
    Cited by:  Papers (7)
    IEEE is not the copyright holder of this material | Click to expandAbstract | PDF file iconPDF (569 KB)

    A sliding mode control for linear multi-variable systems in the presence of disturbances and parameter variations is considered. In the previous sliding mode control, the switching surfaces are linear functions and therefore the speed of response is relatively slow. To solve this problem, a new method, using nonlinear switching surfaces, is introduced so that the speed of response is improved, and... View full abstract»

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  • Rule based identifier for unknown systems

    Publication Year: 1991, Page(s):500 - 506
    Cited by:  Papers (1)
    IEEE is not the copyright holder of this material | Click to expandAbstract | PDF file iconPDF (580 KB)

    Deals with the problem of rule based identification for unknown systems. Several rules have been established which give a desirable estimate for the time delay, minimum structure order and unknown parameters, by using only one open-loop step response test. These rules actually adjust the poles and zeros of the proposed linear model to make its response as close as possible to that of the original ... View full abstract»

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  • Linear feedback approach to the stabilisation of uncertain discrete systems

    Publication Year: 1991, Page(s):507 - 508
    IEEE is not the copyright holder of this material | Click to expandAbstract | PDF file iconPDF (179 KB)

    The author points out a mistake made in the paper 'Control of uncertain discrete-time systems' (1986) by Corless and Manela.<> View full abstract»

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