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Automatic Control, IEEE Transactions on

Issue 2 • Date February 1986

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Displaying Results 1 - 24 of 24
  • [Front cover and table of contents]

    Publication Year: 1986 , Page(s): 0
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    Freely Available from IEEE
  • Editorial: Welcome

    Publication Year: 1986 , Page(s): 97
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    Freely Available from IEEE
  • Correction to "On input-dependent system identification by Monte Carlo approach"

    Publication Year: 1986 , Page(s): 192
    Save to Project icon | Request Permissions | Click to expandAbstract | PDF file iconPDF (148 KB)  

    First Page of the Article
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  • [Back cover]

    Publication Year: 1986 , Page(s): 0
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    Freely Available from IEEE
  • Optimal control of production rate in a failure prone manufacturing system

    Publication Year: 1986 , Page(s): 116 - 126
    Cited by:  Papers (153)
    Save to Project icon | Request Permissions | Click to expandAbstract | PDF file iconPDF (864 KB)  

    We address the problem of controlling the production rate of a failure prone manufacturing system so as to minimize the discounted inventory, cost, where certain cost rates are specified for both positive and negative inventories, and there is a constant demand rate for the commodity produced. The underlying theoretical problem is the optimal control of a continuous-time system with jump Markov di... View full abstract»

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  • Multivariable multirate sampled-data systems: State-space description, transfer characteristics, and Nyquist criterion

    Publication Year: 1986 , Page(s): 145 - 154
    Cited by:  Papers (97)
    Save to Project icon | Request Permissions | Click to expandAbstract | PDF file iconPDF (816 KB)  

    First, a discrete-time state-space description is derived for multivariable multirate sampled-data systems. Then, the "multirate impulse modulation" (MIM) and the "symmetric-coordinate multirate impulse modulation" (SMIM) of a transfer matrix are defined and their relation to the discrete-time state-space description is clarified. Based on the above results, four stability criteria are derived. Th... View full abstract»

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  • Controller design for distributed systems based on Hankel-norm approximations

    Publication Year: 1986 , Page(s): 173 - 176
    Cited by:  Papers (15)
    Save to Project icon | Request Permissions | Click to expandAbstract | PDF file iconPDF (368 KB)  

    A procedure for obtaining a finite-dimensional reduced-order model for a class of distributed systems is developed. It is based on a combination of a modal approximation and an optimal Hankel-norm approximation and the approximation error can be accurately predicted. The reduced-order model can be used to design a precompensator for the original system as its performance and robust stability chara... View full abstract»

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  • On polynomial controllability with polynomial state for linear constant systems

    Publication Year: 1986 , Page(s): 155 - 156
    Cited by:  Papers (5)
    Save to Project icon | Request Permissions | Click to expandAbstract | PDF file iconPDF (184 KB)  

    We prove in this note that for linear, reachable, time independent dynamic systems, control at any given time may be achieved with the additional requirements that both the input and the state be polynomial functions of time. The proof is constructive and elementary, and yields a bound on the degree. View full abstract»

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  • An efficient division algorithm for polynomial matrices

    Publication Year: 1986 , Page(s): 165 - 166
    Cited by:  Papers (5)
    Save to Project icon | Request Permissions | Click to expandAbstract | PDF file iconPDF (168 KB)  

    A new algorithm for carrying out the division of two polynomial matrices is presented. The quotient and remainder are directly computed in a way similar to scalar polynomial division. This method is much simpler than earlier algorithms. View full abstract»

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  • Certainty equivalent control of stochastic systems: Stability property

    Publication Year: 1986 , Page(s): 178 - 180
    Cited by:  Papers (3)
    Save to Project icon | Request Permissions | Click to expandAbstract | PDF file iconPDF (280 KB)  

    This work presents sufficient conditions for infinite and sliding finite-horizon certainty equivalence controllers to stabilize discrete linear systems disturbed by scalar multiplicative white noise sequences. These conditions also guarantee stabilizability by the optimal controllers. View full abstract»

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  • A Lyapunov function of two-dimensional linear systems

    Publication Year: 1986 , Page(s): 170 - 172
    Save to Project icon | Request Permissions | Click to expandAbstract | PDF file iconPDF (240 KB)  

    In this note a Lyapunov function for a 2-D time invariant discrete linear system is introduced, using the 2-D system model given by Roesser [1]. The Lyapunov function may be used to investigate the asymptotic stability of the 2-D system. Previous work dealing with asymptotic stability of 2-D systems [3]-[5] is based upon the location of roots of the characteristic polynomial in the closed polydisk... View full abstract»

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  • Nonlinear stability analysis for a class of differential-integral systems arising from nuclear reactor dynamics

    Publication Year: 1986 , Page(s): 98 - 107
    Cited by:  Papers (3)
    Save to Project icon | Request Permissions | Click to expandAbstract | PDF file iconPDF (728 KB)  

    A nonlinear stability analysis has been performed for mixed differential-integral equations particularly applicable to nuclear reactors. New general theorems of stability in bounded domains of initial perturbations have been introduced for a class of reactor models with an arbitrary reactivity feedback. Also, effective stability criteria have been established for reactors with linear reactivity fe... View full abstract»

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  • Explicit solution to the unstable stationary filtering problem

    Publication Year: 1986 , Page(s): 185 - 189
    Cited by:  Papers (9)
    Save to Project icon | Request Permissions | Click to expandAbstract | PDF file iconPDF (512 KB)  

    An expression in closed form for the constant Kalman gain in stationary filtered estimation of linear unstable processes is obtained and bounds on the achievable accuracy of the estimate are derived. This expression is used to find lower and upper bounds for the singular values of the solution of the algebraic matrix Riccati equation and to derive the minimum-phase image of linear systems that pos... View full abstract»

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  • A study of nuclear reactor models with nonlinear reactivity feedbacks: Stability criteria and power overshoot evaluation

    Publication Year: 1986 , Page(s): 108 - 115
    Save to Project icon | Request Permissions | Click to expandAbstract | PDF file iconPDF (560 KB)  

    A theoretical method of analysis of equations describing the dynamics of nuclear reactors with nonlinear reactivity feedbacks is presented. Criteria have been derived for conditional stability of a large class of reactor models, including the evaluation of regions of permissible initial perturbations. Also, relationships have been studied between the magnitude of perturbed trajectories and that of... View full abstract»

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  • Guaranteed stability margins for the discrete-time linear quadratic optimal regulator

    Publication Year: 1986 , Page(s): 162 - 165
    Cited by:  Papers (22)
    Save to Project icon | Request Permissions | Click to expandAbstract | PDF file iconPDF (400 KB)  

    The stability properties of the linear quadratic deterministic optimal regulator are investigated in the discrete-time case. Guaranteed phase- and gain- margins are obtained for the regulator in terms of the singular values of the matrices of the regulator state-space description. These margins are compared to their continuous-time counterparts and their implication on the regulator robustness is ... View full abstract»

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  • A constructive algorithm for the complete set of compensators for two-dimensional feedback system design

    Publication Year: 1986 , Page(s): 166 - 170
    Cited by:  Papers (1)
    Save to Project icon | Request Permissions | Click to expandAbstract | PDF file iconPDF (480 KB)  

    In the recent factorization approach to linear feedback system design, it has been found that in order to completely solve a generalized Ω-stabilization problem, a coprime condition in the ring of Ω-stable transfer functions must be solved. In this note, two-dimensional (2- D) systems are considered, and this Ω-stable coprime condition is solved for Ω-stable rings. A well-known... View full abstract»

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  • Stabilization of discrete systems with multiple-time scales

    Publication Year: 1986 , Page(s): 159 - 162
    Cited by:  Papers (7)
    Save to Project icon | Request Permissions | Click to expandAbstract | PDF file iconPDF (384 KB)  

    A two-stage method is developed for the stabilization of linear time-invariant discrete systems with multiple-time scales. It is shown that the feedback gains are completely independent. The closed-loop system is asymptotically stable for all sufficiently small singular perturbation parameters which are constrained to be in a bounded set. View full abstract»

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  • Dual criterion stochastic optimal control problem for robustness improvement

    Publication Year: 1986 , Page(s): 181 - 185
    Cited by:  Papers (6)
    Save to Project icon | Request Permissions | Click to expandAbstract | PDF file iconPDF (472 KB)  

    The solution of the dual criterion linear quadratic stochastic optimal control problem is obtained by following a Wiener type of solution procedure. A stabilizing solution is guaranteed by parameterizing the controller using the Desoer fractional representation approach. The dual criterion includes sensitivity and complementary sensitivity weighting terms which provide a means of varying the robus... View full abstract»

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  • On stabilization of large-scale control systems using variable structure systems theory

    Publication Year: 1986 , Page(s): 176 - 178
    Cited by:  Papers (11)
    Save to Project icon | Request Permissions | Click to expandAbstract | PDF file iconPDF (264 KB)  

    A new approach to control design for large-scale systems using variable structure systems (VSS) theory is presented. Multilevel control concepts arc used to decompose a large control problem into a two-level algorithm such that each subsystem is stabilized with local discontinuous controllers and higher level corrective control is designed to take into account the effect of interactions among the ... View full abstract»

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  • Design variables for bias distribution in transfer function estimation

    Publication Year: 1986 , Page(s): 134 - 144
    Cited by:  Papers (50)
    Save to Project icon | Request Permissions | Click to expandAbstract | PDF file iconPDF (928 KB)  

    Estimation of transfer functions of linear systems is one of the most common system identification problems. Several different design variables, chosen by the user for the identification procedure, affect the properties of the resulting estimate. In this paper it is investigated how the choices of prefilters, noise models, sampling interval, and prediction horizon (i.e., the use of View full abstract»

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  • Realization of bilinear stochastic systems

    Publication Year: 1986 , Page(s): 189 - 192
    Cited by:  Papers (9)
    Save to Project icon | Request Permissions | Click to expandAbstract | PDF file iconPDF (416 KB)  

    This note considers the problem of realization of bilinear stochastic systems (BLSR). First an explicit statement for the BLSR problem is presented. Next a realization algorithm is developed. In this algorithm the state vector is picked as a basis in the subspace obtained by projecting an appropriately defined past vector onto an appropriately defined future vector. Also, the realization algorithm... View full abstract»

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  • Robust model reference adaptive control

    Publication Year: 1986 , Page(s): 127 - 133
    Cited by:  Papers (110)
    Save to Project icon | Request Permissions | Click to expandAbstract | PDF file iconPDF (648 KB)  

    We propose a new model reference adaptive control algorithm and show that it provides the robust stability of the resulting closed-loop adaptive control system with respect to unmodeled plant uncertainties. The robustness is achieved by using a relative error signal in combination with a dead zone and a projection in the adaptive law. The extra a priori information needed to design the adaptive la... View full abstract»

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  • On modeling error characterization of multiple dead times systems

    Publication Year: 1986 , Page(s): 157 - 159
    Save to Project icon | Request Permissions | Click to expandAbstract | PDF file iconPDF (280 KB)  

    Process model uncertainties of systems with multiple dead times are considered. The spectral and the Frobenius norms are used for investigating the control system stability. A necessary and sufficient condition for practical stability is developed. View full abstract»

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  • On the generalized Cayley-Hamilton theorem

    Publication Year: 1986 , Page(s): 156 - 157
    Cited by:  Papers (8)
    Save to Project icon | Request Permissions | Click to expandAbstract | PDF file iconPDF (208 KB)  

    The Cayley-Hamilton theorem is extended to the case where two A and B n \times n matrices are involved. Results similar to the regular case are presented. The results are useful for problems that concern the analysis as well as the synthesis of singular systems, for the definition of a function of two matrices View full abstract»

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Aims & Scope

In the IEEE Transactions on Automatic Control, the IEEE Control Systems Society publishes high-quality papers on the theory, design, and applications of control engineering.  Two types of contributions are regularly considered

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Meet Our Editors

Editor-in-Chief
P. J. Antsaklis
Dept. Electrical Engineering
University of Notre Dame