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IEEE Transactions on Automatic Control

Issue 3 • Date March 1984

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Displaying Results 1 - 25 of 26
  • [Front cover and table of contents]

    Publication Year: 1984, Page(s): 0
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  • In memoriam: Hendrik W. Bode (1905-1982)

    Publication Year: 1984, Page(s):193 - 194
    Cited by:  Papers (2)
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    Freely Available from IEEE
  • Correction to "Adaptive estimation and identification for discrete systems with Markov jump parameters"

    Publication Year: 1984, Page(s): 286
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (52 KB)

    A correction to the proof of a theorem (ibid., vol. AC-27, no. 5, pp. 1054-1065, 1982) is provided. View full abstract»

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  • Introduction to algebraic system theory (Sain, M.K.; 1981)

    Publication Year: 1984, Page(s):287 - 288
    Cited by:  Papers (1)
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    Freely Available from IEEE
  • [Back cover]

    Publication Year: 1984, Page(s): 0
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    Freely Available from IEEE
  • Robustness and modeling error characterization

    Publication Year: 1984, Page(s):212 - 220
    Cited by:  Papers (44)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (848 KB)

    The results on robustness theory presented here are extensions of those given in [1]. The basic innovation in these new results is that they utilize minimal additional information about the structure of the modeling error as well as its magnitude to assess the robustness of feedback systems for which robustness tests based on the magnitude of modeling error alone are inconclusive. View full abstract»

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  • Root clustering of a real matrix in a sector

    Publication Year: 1984, Page(s):251 - 253
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (232 KB)

    We prove that a real matrix A \in R^{n \times n} has all its eigenvalues in the left sector if and only if the polynomial det [ \lambda ^{2}I - 2\delta A\lambda + (\delta ^{2} + 1)A^{2} ] is Hurwitz where δ is the sector's slope. View full abstract»

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  • Simultaneous adaptive control and identification via the weighted least-square algorithm

    Publication Year: 1984, Page(s):259 - 263
    Cited by:  Papers (4)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (448 KB)

    In this note, we prove the almost sure convergence of the proposed adaptive control and identification algorithms involving a weighted least-square parameter estimator. The analysis presented here strengthens the previous results achieved in this context. The proposed algorithm and the analysis achieve the convergence of the tracking error in a strong sense at an asymptotically arithmetic rate. Th... View full abstract»

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  • On the design of a special-purpose digital control processor

    Publication Year: 1984, Page(s):195 - 201
    Cited by:  Papers (11)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (752 KB)

    This paper examines the design of a special-purpose digital processor targeted for linear-regulator control system implementation, and monolithic microelectronic fabrication. In order to improve the computational dynamic range, accuracy, and speed of this digital control processor (DCP), a logarithmic arithmetic is selected. This selection is based upon an examination of DCP data wordlength requir... View full abstract»

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  • Optimal linear nonanticipative control of partially observable bilinear systems

    Publication Year: 1984, Page(s):271 - 274
    Cited by:  Papers (1)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (392 KB)

    Via the concept of projection estimates a class of partially observable bilinear control problem is reduced to a completely observable one and the optimal linear nonanticipative control is sought via a deterministic Hamilton-Jacobi-Bellman theory. View full abstract»

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  • Single exponential indentification of degree-2 polynomial systems

    Publication Year: 1984, Page(s):263 - 266
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (432 KB)

    Realizable degree-2 polynomial systems are completely identified by their response to single real exponential inputs. Identification is in terms of the regular transfer functions. View full abstract»

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  • On the design of a decentralized observation scheme for large-scale systems

    Publication Year: 1984, Page(s):274 - 276
    Cited by:  Papers (22)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (336 KB)

    The problem of designing a decentralized observation scheme with a specified convergence rate for a large-scale system that may be described as an interconnection of several subsystems is considered. A new mathematical result for the factorization of the interconnection matrix in a certain form is given and its application to the observer design problem is discussed. The present results demonstrat... View full abstract»

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  • An invariant parameter in linear estimation and control

    Publication Year: 1984, Page(s):269 - 271
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (352 KB)

    An invariant parameter for the joint observer-controller design, the forward and backward Kalman-Bucy (KB) filter, and the LQG control problem is obtained. Next the balancedness in balanced realizations is interpreted from the invariant parameter viewpoint. It is shown that in general a balanced realization does not lead to a balanced observer-controller design. Also the concept of continuous-time... View full abstract»

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  • Transfer function conditions for stabilizability

    Publication Year: 1984, Page(s):253 - 254
    Cited by:  Papers (5)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (176 KB)

    For the linear time invariant system \bigl [\matrix {y_{c}(s)\cr y_{m}(s)}\bigr ] = \bigl [\matrix{G(s)&H(s)\cr M(s)&N(s)} \bigr ] \bigl [\matrix {u_{c}(s)\cr u_{r}(s)}\bigr ] a necessary and sufficient condition based on the proper rational transfer function matrices {G, H, M, N} is given for the existence of a ... View full abstract»

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  • Robust redesign of adaptive control

    Publication Year: 1984, Page(s):202 - 211
    Cited by:  Papers (125)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (832 KB)

    Effects of unmodeled high frequency dynamics on stability and performance of adaptive control schemes are analyzed. In the regulation problem global stability properties are no longer guaranteed, but a region of attraction exists for exact adaptive regulation. The dependence of the region of attraction on unmodeled parasitics is examined first. Then the general case of model reference adaptive con... View full abstract»

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  • Digitalization of existing continuous control systems

    Publication Year: 1984, Page(s):282 - 285
    Cited by:  Papers (47)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (360 KB)

    The problem of converting existing continuous-data control systems into digital control systems is considered. The objective of this paper is to develop a computer-aided method for synthesizing the pulse-transfer function of the digital controller. This is done by matching the frequency response of the digital control system to that of the continuous system with a minimum weighted mean-square erro... View full abstract»

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  • Infinite structure and exact model matching problem: A geometric approach

    Publication Year: 1984, Page(s):266 - 268
    Cited by:  Papers (31)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (336 KB)

    We first generalize to ( A, B, C, D ) quadruples the geometric characterization of the infinite zero structure. We then give a new geometric proof for a solvability condition of the exact model matching problem expressed in terms of this concept and previously established, in the polynomial context, by Morse, Verghese, and Pernebo. This emphasizes the approac... View full abstract»

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  • A note on balanced controller reduction

    Publication Year: 1984, Page(s):254 - 257
    Cited by:  Papers (59)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (360 KB)

    The standard linear quadratic Gaussian (LQG) optimal controller is not minimal in general, even if the plant is minimal. Hence, the order of the optimal controller can be less than that of the plant. This note shows that the original balancing method of Moore [1] can be used to generate these reduced order optimal controllers, but the newer balancing methods recently proposed for controller reduct... View full abstract»

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  • Arbitrary adaptive pole placement for linear multivariable systems

    Publication Year: 1984, Page(s):221 - 229
    Cited by:  Papers (20)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (872 KB)

    This paper presents a methodology for adaptively assigning the closed-loop poles of either continuous or discrete time linear mnltivariable systems. The scheme is direct in nature in that no parametrized model of the unknown plant needs to be explicitely identified. Rather the control parameters, and an "equivalent" plant parameterization are simultaneously estimated from input-output data using l... View full abstract»

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  • Three-level Stackelberg decision problems

    Publication Year: 1984, Page(s):280 - 282
    Cited by:  Papers (5)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (328 KB)

    Three-level Stackelberg decision problems are studied by using the inducible region concept. Through a systematic derivation, it is identified that the leader's control has dual purposes, which in general are not separable. A special class of problems is then considered, where explicit results are obtained. View full abstract»

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  • Nonlinear HVDC link model reduction in multi AC-HVDC power system state estimation

    Publication Year: 1984, Page(s):257 - 259
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (256 KB)

    Attempting to reduce the order of the HVDC link subspace in a multi AC-HVDC state estimator from 11 states to 4 increases the complexity and nonlinearity of the HVDC link measurement equations, decreases the HVDC link estimate accuracy, and increases the density of nonzero HVDC link Jacobian partial derivative terms. View full abstract»

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  • The deconvolution problem: Fast algorithms including the preconditioned conjugate-gradient to compute a MAP estimator

    Publication Year: 1984, Page(s):229 - 243
    Cited by:  Papers (18)  |  Patents (2)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (1032 KB)

    Different aspects of the deconvolution problem are discussed and a solution by the MAP estimator using the a priori knowledge of smoothness and nonnegativity of the unknown signal is proposed. Several fast algorithms are examined and the conjugate-gradient (CG) method is show to have several advantages: it allows computation of a constrained solution and when used with a preconditioning technique ... View full abstract»

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  • An inclusion principle for dynamic systems

    Publication Year: 1984, Page(s):244 - 249
    Cited by:  Papers (89)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (704 KB)

    The purpose of this paper is to present a detailed study of the inclusion concept in dynamic systems, which is a suitable mathematical framework for comparing systems with different dimensions. The framework offers immediate results in reduced-order modeling and the overlapping decentralized control of complex systems. The presentation, which is limited to linear constant systems, relies on both t... View full abstract»

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  • An example of a nonlinear regulator

    Publication Year: 1984, Page(s):276 - 279
    Cited by:  Papers (58)  |  Patents (1)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (360 KB)

    The purpose of this note is to use the concept of feedback equivalence to linear controllable systems in order to design a nonlinear regulator for a synchronous generator connected to an infinite bus. The design of the regulator will show how recently developed theorems in the area of geometric nonlinear control theory approach a power system problem, offering an interesting solution. View full abstract»

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  • Fast inversion of triangular Toeplitz matrices

    Publication Year: 1984, Page(s):250 - 251
    Cited by:  Papers (11)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (192 KB)

    An algorithm requiring 0(n \log n) operations is proposed for the inversion of triangular Toeplitz matrices. This algorithm is faster than existing techniques, even for relatively small values of n , and can easily be written in Fortran. 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