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Realization (systems)

About: Realization (systems) is a(n) research topic. Over the lifetime, 16686 publication(s) have been published within this topic receiving 200728 citation(s). more


Journal ArticleDOI: 10.2514/3.20031
Jer-Nan Juang1, Richard S. Pappa1Institutions (1)
Abstract: A method, called the Eigensystem Realization Algorithm (ERA), is developed for modal parameter identification and model reduction of dynamic systems from test data. A new approach is introduced in conjunction with the singular value decomposition technique to derive the basic formulation of minimum order realization which is an extended version of the Ho-Kalman algorithm. The basic formulation is then transformed into modal space for modal parameter identification. Two accuracy indicators are developed to quantitatively identify the system modes and noise modes. For illustration of the algorithm, examples are shown using simulation data and experimental data for a rectangular grid structure. more

2,138 Citations

Open accessBook
01 Jun 2000-
Abstract: DEFINITIONS. Definitions and Conditions of Positivity. Influence Graphs. Irreducibility, Excitability and Transparency. PROPERTIES. Stability. Spectral Characterization of Irreducible Systems. Positivity of Equilibria. Reachability and Observability. Realization. Minimum Phase. Interconnected Systems. APPLICATIONS. Input-Output Analysis. Age-Structured Population Models. Markov Chains. Compartmental Systems. Queueing Systems. Conclusions. Annotated Bibliography. Bibliography. Appendices. Index. more

Topics: Positive systems (55%), Observability (52%), Irreducibility (51%) more

1,814 Citations

Open accessBook
01 Jan 2001-
Abstract: Conservative logic is a comprehensive model of computation which explicitly reflects a number of fundamental principles of physics, such as the reversibility of the dynamical laws and the conservation of certain additive quantities (among which energy plays a distinguished role). Because it more closely mirrors physics than traditional models of computation, conservative logic is in a better position to provide indications concerning the realization of high-performance computing systems, i.e., of systems that make very efficient use of the "computing resources" actually offered by nature. In particular, conservative logic shows that it is ideally possible to build sequential circuits with zero internal power dissipation. After establishing a general framework, we discuss two specific models of computation. The first uses binary variables and is the conservative-logic counterpart of switching theory; this model proves that universal computing capabilities are compatible with the reversibility and conservation constraints. The second model, which is a refinement of the first, constitutes a substantial breakthrough in establishing a correspondence between computation and physics. In fact, this model is based on elastic collisions of identical "balls" and thus is formally identical with the atomic model that underlies the (classical) kinetic theory of perfect gases. Quite literally, the functional behavior of a general-purpose digital computer can be reproduced by a perfect gas placed in a suitably shaped container and given appropriate initial conditions. more

Topics: Model of computation (57%), Sequential logic (54%), Reversible computing (54%) more

1,810 Citations

Open accessBook
24 Apr 1986-
Abstract: Contents: Local Decompositions of Control Systems.- Global Decompositions of Control Systems.- Input-Output Maps and Realization Theory.- Elementary Theory of Nonlinear Feedback for Single-Input Single-Output Systems.- Elementary Theory of Nonlinear Feedback for Multi-Input Multi-Output Systems.- Geometric Theory of State Feedback: Tools.- Geometric Theory of State Feedback: Applications.- Appendix A.- Appendix B.- Bibliographical Notes.- References.- Subject Index. more

Topics: Nonlinear control (60%), Feedback linearization (57%), Realization (systems) (53%) more

1,614 Citations

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Topic's top 5 most impactful authors

Tadeusz Kaczorek

32 papers, 1K citations

Anders Lindquist

21 papers, 713 citations

Ülle Kotta

19 papers, 146 citations

Wu-Sheng Lu

18 papers, 165 citations

Israel Gohberg

13 papers, 239 citations

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