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Proceedings of 1995 34th IEEE Conference on Decision and Control

13-15 Dec 1995

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  • Time-varying exponential stabilization of the attitude of a rigid spacecraft with two controls

    Publication Year: 1995, Page(s):3988 - 3993 vol.4
    Cited by:  Papers (23)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (444 KB)

    Rigid body models with two controls cannot be locally asymptotically stabilized by continuous feedback which are functions of the state only. However, explicit smooth time-varying feedback which locally asymptotically stabilize the attitude of a rigid spacecraft have previously been proposed by the authors (1995). Due to the smoothness of the control law, the stabilization is not exponential and t... View full abstract»

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  • Attitude control of an underactuated satellite

    Publication Year: 1995, Page(s):3986 - 3987 vol.4
    Cited by:  Papers (3)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (160 KB)

    A continuous feedback controller with a periodic time varying term for the attitude control of an underactuated rigid spacecraft is derived. The attitude is described with the Euler parameter vector. Due to the nondifferentiable nature of exponential stabilizers, sampling of some measurements is used. Global exponential convergence is indicated with analysis and simulations View full abstract»

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  • Periodic forcing, dynamics and control of underactuated spacecraft and underwater vehicles

    Publication Year: 1995, Page(s):3980 - 3985 vol.4
    Cited by:  Papers (23)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (428 KB)

    In this paper we describe spacecraft and underwater vehicle dynamics with small-amplitude, periodically time-varying forcing. The dynamic descriptions are derived so that they can be used to prescribe forcing laws for controlling the motion of these systems when they are underactuated, i.e., when the number of force inputs is less than the dimension of the configuration space. The use of periodic ... View full abstract»

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  • Job shop scheduling with group-dependent setups, finite buffers, and long time horizon

    Publication Year: 1995, Page(s):4184 - 4189 vol.4
    Cited by:  Papers (2)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (564 KB)

    The design and implementation of a scheduling system for the manufacturing of Toshiba's gas insulated switchgears is presented. The manufacturing is characterized by significant machine setup times, strict local buffer capacities, the option of choosing a few exclusive-or routes for processing, and long horizon as compared to the time resolution required. Our goal is to obtain near optimal schedul... View full abstract»

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  • Simultaneous structure and control design for a flexible pointing system actuated by active materials

    Publication Year: 1995, Page(s):4374 - 4379 vol.4
    Cited by:  Papers (2)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (448 KB)

    A methodology for simultaneous structure and motion specific tasks with its associated control system is presented in this paper. The methodology is based on the authors' trajectory pattern method (TPM) [1994]. The advocated methodology is illustrated on an important class of problems, namely flexible slewing structures. The class of systems considered encompasses multilink manipulators, high spee... View full abstract»

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  • Analytical solution of generalized 3D proportional navigation

    Publication Year: 1995, Page(s):3974 - 3979 vol.4
    Cited by:  Papers (1)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (416 KB)

    The main goal of this paper is to establish a systematic analysis on three-dimensional (3D) guidance laws. The concept of generalized three-dimensional proportional navigation is introduced and its analytical solution is derived. The three second-order nonlinear differential equations describing the 3D pursuit-evasion scenario are obtained in terms of the unit angular momentum which is an useful i... View full abstract»

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  • Effects of torsional dynamics on nonlinear generator control. 1

    Publication Year: 1995, Page(s):3887 - 3894 vol.4
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (628 KB)

    The performance of a feedback-linearizing control for excitation control of a synchronous generator is investigated with respect to unmodeled dynamics of both the turbine-generator unit and the transmission network. It is found that certain types of dynamics that were not modeled during the design of the control enter in a manner that does affect the performance of the control, but that preserves ... View full abstract»

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  • Improvability properties of assembly systems

    Publication Year: 1995, Page(s):4182 - 4183 vol.4
    Cited by:  Papers (1)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (180 KB)

    The problem of improvability of manufacturing systems which include the assembly of parts produced is formulated. A simple model with a Bernoulli model of machine reliability is analyzed using numerical simulations. It is shown that there exist improvability properties structural in nature. In particular, an assembly system is unimprovable with respect to the machine efficiency re-distribution if ... View full abstract»

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  • Explicit construction of finite-dimensional nonlinear filters with state space dimension 3

    Publication Year: 1995, Page(s):4030 - 4034 vol.4
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (260 KB)

    In this note, we use the Wei-Norman approach (1964) to explicitly construct finite-dimensional nonlinear filters with state space dimension three. It is shown that from the Lie algebraic point of view, generically all finite-dimensional recursive filters are of this form View full abstract»

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  • Uncertainty model unfalsification: a system identification paradigm compatible with robust control design

    Publication Year: 1995, Page(s):3492 - 3497 vol.4
    Cited by:  Papers (25)  |  Patents (3)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (532 KB)

    It is shown that unfalsification of the standard robust control design uncertainty model is a natural replacement for system identification when the intended use of the model is robust control design. For the ARX model, the unfalsification step requires solving a set of convex programming problems, specifically LMI problems, of which ordinary least-squares is one member. The result is a tradeoff c... View full abstract»

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  • A new pole-placement regulator design method

    Publication Year: 1995, Page(s):3408 - 3413 vol.4
    Cited by:  Papers (4)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (388 KB)

    A new pole placement controller structure and regulator design method is introduced avoiding the explicit solution of polynomial equations. An applicable strategy for iterative control refinement based on this generic scheme is presented and illustrated by simulation examples View full abstract»

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  • A parametrization for automatic loop-by-loop multivariable controller design

    Publication Year: 1995, Page(s):4103 - 4107 vol.4
    Cited by:  Papers (2)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (380 KB)

    Linear multivariable controller design is performed iteratively one column at a time via a new result which gives a parametrization of the class of all stabilizing columns when all but one of the controller columns are fixed, for a stable, strictly proper plant. All closed loop transfer matrices of interest are expressed as affine functions of a free (stable) design parameter. A dual parametrizati... View full abstract»

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  • Frequency weighted balanced reduction technique: a generalization and an error bound

    Publication Year: 1995, Page(s):3576 - 3581 vol.4
    Cited by:  Papers (20)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (416 KB)

    In this paper, a new frequency weighted balanced reduction technique is presented. The method is guaranteed to yield stable reduced order models and is applicable to both discrete and continuous systems. It is a simple generalization of Al-Saggaf and Franklin's technique (1986, 1988), but can handle square double-sided weighting matrices, and requires no restriction relating input, state and outpu... View full abstract»

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  • Pole placement for MIMO time-varying non-lexicographic-fixed linear systems

    Publication Year: 1995, Page(s):4368 - 4373 vol.4
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (316 KB)

    This paper deals with the pole placement of linear time-varying systems which are not lexicographic-fixed. The property of being lexicographic-fixed is the last restriction which remains for the pole placement of linear time-varying systems besides to be controllable View full abstract»

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  • State feedback H control of a rigid spacecraft

    Publication Year: 1995, Page(s):3968 - 3973 vol.4
    Cited by:  Papers (4)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (360 KB)

    In the present paper we address a state feedback H suboptimal control problem for a rigid spacecraft with three control torques and disturbances. The state feedback H suboptimal control problem on TSO(3) is transferred to a corresponding state feedback H suboptimal control problem on TS3, and the Hamilton-Jacobi inequality associate... View full abstract»

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  • Stability analysis of exact model matching control for finite Volterra series systems

    Publication Year: 1995, Page(s):3785 - 3790 vol.4
    Cited by:  Papers (4)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (500 KB)

    This paper is concerned with exact model matching control (EMM) for finite Volterra series systems and analyses stability of the systems. First, the authors show a structure of a causal controller which can achieve the exact model matching to a reference model. Next, in order to discuss the stability of the proposed control system, the authors give an input dependent small gain theorem. Finally, t... View full abstract»

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  • A queueing approach to manufacturing flow control models

    Publication Year: 1995, Page(s):3372 - 3375 vol.4
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (368 KB)

    Presents a new method developed to study the problem of optimal production control in failure prone manufacturing systems. The key idea of the method is to explore a relationship of the failure prone manufacturing systems to some simple queueing systems. By using this relationship the author can easily evaluate cost functions based on existing results in queueing theory and some simple level cross... View full abstract»

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  • On robust stability under slowly-varying memoryless uncertainty

    Publication Year: 1995, Page(s):4321 - 4326 vol.4
    Cited by:  Papers (5)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (428 KB)

    It is shown that uniform robust stability under arbitrary slowly varying parametric uncertainty of size less than or equal to one is insured if the supremum over frequency of the standard “real μ upper bound” is less than one. A counterexample is provided that shows that the converse does not hold View full abstract»

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  • Biological motor control approaches for a planar diver

    Publication Year: 1995, Page(s):3881 - 3886 vol.4
    Cited by:  Papers (10)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (432 KB)

    A human diver in the air is an example of a nonholonomic system with drift. In this paper, the authors present a dynamic model of the diver performing planar dives and examine a simple learning approach to the control problem. Finally, the authors present a proposal for a general, hierarchical, learning controller for systems with many degrees of freedom View full abstract»

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  • Explicit formulas for operator Riccati equations arising in H control with delays

    Publication Year: 1995, Page(s):4175 - 4181 vol.4
    Cited by:  Papers (6)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (532 KB)

    Standard H-control problems are discussed for a system with delays in control. For the operator Riccati equations arising in full-information control problem, a necessary and sufficient condition on the solvability is clarified in the framework of finite-dimensional operations. The check method of solvability requires a stabilizing solution to matrix Riccati equation with a maxim... View full abstract»

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  • Robust regulation for a class of parameters uncertain nonlinear systems with minimum-phase

    Publication Year: 1995, Page(s):3953 - 3954 vol.4
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (116 KB)

    In this paper we consider the robust regulation problems of minimum-phase nonlinear systems with the time-varying parameter uncertainties which enter linearly. It is shown that if the undisturbed system has the minimum-phase, parameters or disturbances are in a (unknown) compact set, and the generalised triangularity condition holds, then there exists a “softer” state feedback controll... View full abstract»

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  • Universal prediction of nonlinear systems

    Publication Year: 1995, Page(s):4024 - 4029 vol.4
    Cited by:  Papers (3)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (424 KB)

    We construct a class of elementary nonparametric output predictors of an unknown nonlinear system. Our algorithms predict asymptotically well for every bounded input sequence, every disturbance sequence in certain classes, and every nonlinear system that is bounded, continuous, and asymptotically time-invariant, causal, with decaying memory. The predictor uses only previous input and noisy output ... View full abstract»

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  • Optimal location of controls for an acoustic problem

    Publication Year: 1995, Page(s):3765 - 3766 vol.4
    Cited by:  Papers (4)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (136 KB)

    Investigates the optimal location of controllers to achieve reduction of noise field in an acoustic cavity. The author first formulates a linear quadratic tracking problem in a Hilbert space, and then considers the problem of optimization of an appropriate performance criterion with respect to the location of the controls. Numerical examples are presented to illustrate the author's theoretical res... View full abstract»

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  • On active control of flow induced vibrations

    Publication Year: 1995, Page(s):3725 - 3729 vol.4
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (312 KB)

    In this paper, we consider the design of active control strategies for flutter suppression in an aeroelastic system consisting of a two dimensional airfoil section with dynamics coupled to the surrounding flow. To facilitate this, a three-degree of freedom model for the airfoil section and a potential flow model for the flow are used. We present an example to demonstrate the feasibility of state f... View full abstract»

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  • The experimental validation of robust control models for a heat experiment: a linear matrix inequality approach

    Publication Year: 1995, Page(s):3486 - 3491 vol.4
    Cited by:  Papers (1)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (460 KB)

    Theoretical developments in time domain, sampled-data, model validation are applied to a radiant heat experiment. The time domain model validation problem applied here considers a continuous time robust control model, including unknown perturbations and signals, using a discrete datum of finite length. The sampled-data time domain model validation problem can be formulated as a linear matrix inequ... View full abstract»

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