RAS Trapeznikov Institute of Control Sciences

Moscow, Russia

RAS Trapeznikov Institute of Control Sciences

Moscow, Russia
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Markovich N.M.,RAS Trapeznikov Institute of Control Sciences
Extremes | Year: 2017

We study clusters of threshold exceedances caused by dependence in time series. The clusters are defined as conglomerates containing consecutive threshold exceedances of the series separated by return intervals with consecutive non-exceedances. We derive asymptotic distributions of the cluster and inter-cluster sizes for processes with the extremal index equal to zero, the asymptotic expectation of the inter-cluster size and an exponential rate of convergence of the distribution tail of the return interval between clusters to the stable distribution tail. Distributions of the cluster and inter-cluster sizes of ARMAX, MM and AR(1) processes are obtained. © 2017 Springer Science+Business Media New York


Pavlovskiy I.S.,RAS Trapeznikov Institute of Control Sciences
Procedia Computer Science | Year: 2017

In this article we formulate the position of the contextual approach to the requirements to semantic objects of scientific information integration. Terms of the scientific publication are objects. The homogeneous conceptual models are offered for systematization of terms of the scientific publication and an estimation of its semantic integrity. The example of semantic integration of two scientific publications is given. The applied and researched tasks are defined for the formal and semantic integration of scientific information. © 2017 The Authors.


Novikov D.A.,RAS Trapeznikov Institute of Control Sciences
Advances in Intelligent Systems and Computing | Year: 2017

A new development stage of cybernetics (the so-called cybernetics 2.0) - as a science on general regularities of systems organization and control – is discussed. A fruitful combination of organization and control within cybernetics 2.0 would give a substantiated and efficient answer to the primary question of activity systems engineering: how should control systems for them be constructed? Actually, this is a “reflexive” question related to second-order and even higher-order cybernetics. Mankind has to learn to design and implement control systems for complex systems (high-technology manufacturing, product life cycle, organizations, regions, etc.), similarly to the existing achievements in technical systems engineering!. © Springer International Publishing AG 2017.


Akhobadze G.N.,RAS Trapeznikov Institute of Control Sciences
Conference Proceedings - 2016 International Conference on Actual Problems of Electron Devices Engineering, APEDE 2016 | Year: 2017

The paper discusses principles for measuring density of wood on the basis of using the polarity effect for electromagnetic waves in anisotropic and isotropic substances. Relationships between velocity of propagation of orthogonally polarized waves and permittivity of substances measured are examined. Information parameters of polarized waves and their dependences on the parameters measured are identified. Errors in measurement results are analyzed and a method for controlling them is proposed. An application field for the solid material density measuring device is given. © 2016 IEEE.


Krasnova S.A.,RAS Trapeznikov Institute of Control Sciences
2016 13th International Scientific-Technical Conference on Actual Problems of Electronic Instrument Engineering, APEIE 2016 - Proceedings | Year: 2017

The paper deals with the problem of stabilizing with a given accuracy for output variables of SISO and MIMO nonlinear systems. A mathematical model of the control plant is represented in block form 'input-output' and contains unmatched external disturbances and parametric uncertainties. Within the block approach, decomposition procedures of synthesis of robust control are designed under the uncertainty of the input channels of fictitious and real controls. Using S-shaped, smooth and bounded sigma-functions in local feedbacks allowed us to consider restrictions on state variables at the synthesis stage. For block synthesis of MIMO systems with undetermined and non-singular matrices before fictitious and real control actions, the ideology of the control hierarchy method has been used for calculating lower bounds of amplitudes of sigmoidal controls, ensuring the convergence of the state variables in the defined regions. This approach extends the class of invariant systems by nonlinear systems with non-smooth disturbances, where special requirements for the composition of the state variables in each block are missing. © 2016 IEEE.


Tkhai V.N.,RAS Trapeznikov Institute of Control Sciences
Automation and Remote Control | Year: 2013

Consideration was given to the model with coupled subsystems. In the absence of relations between the subsystems, the MIS falls down into independent systems of autonomous ordinary differential equations. In the structure of the entire system, the subsystems make up hierarchical levels. Sun-planets- satellites, interacting moving objects, and so on exemplify the models with coupled subsystems. The problem of studying dynamics of such models was posed. The following natural approach to their analysis was proposed: classification of the subsystems by types (dynamic properties), specification of various bundles of subsystems, and subsequent analysis of these bundles. Realization of the approach to oscillations, stability, stabilization, bifurcation, and resonance was given. These problems were solved for the model with coupled subsystems having two second-kind subsystems in the basic combination of the oscillation modes in the subsystem. © 2013 Pleiades Publishing, Ltd.


Bagdasaryan A.,RAS Trapeznikov Institute of Control Sciences
Simulation Modelling Practice and Theory | Year: 2011

The method for dynamic model synthesis and discrete simulation of complex hierarchical control systems is presented. The method provides integration of large data sets, monitoring data and expert knowledge with the process of simulation and analysis of system state dynamics, thus providing an extensible and evolvable environment and reuse of knowledge and simulation models. The method is based on the hierarchical state diagrams technique and control scenarios methodology. The general structure of corresponding computer simulation system is also proposed. We also outline general principles of computer realization of our simulation approach, and schemes of model-based knowledge representation. The proposed method is based on the object-oriented paradigm and is especially powerful in information-intensive environments. © 2010 Elsevier B.V. All rights reserved.


Tkhai V.N.,RAS Trapeznikov Institute of Control Sciences
Automation and Remote Control | Year: 2015

Consideration was given to the model containing coupled subsystems (MCCS). With no connection between the subsystems, the MCCS falls down into independent subsystems, that is, systems of autonomous ordinary differential equations. MCCS with cycles in the subsystems were examined. For the autonomous MCCS, conditions were established for cycles and their stability, and a cycle stabilization by the control explicitly independent of time was proposed. For the periodic MCCS, generation of isolated periodic solutions was proved, and the problem of their stability and stabilization was solved. © 2015, Pleiades Publishing, Ltd.


Tkhai V.N.,RAS Trapeznikov Institute of Control Sciences
Automation and Remote Control | Year: 2015

Consideration was given to the model containing coupled subsystems (MCCS). In the absence of coupling, MCCS falls down into independent subsystems represented by autonomous ordinary differential equations (ODE). In the structure of the entire system its subsystems make up hierarchical levels. The autonomous MCCS was studied. The “cycle or family of periodic motions” alternative was shown to be always realized by an individual system in a nondegenerate situation. For the main mode of oscillations, a scenario was given for bifurcation of the family of all families of periodic solutions arising with generation of the MCCS cycles. Consideration was given to stability of cycles, and the problem of their stabilization was solved. © 2015, Pleiades Publishing, Ltd.


Yadykin I.B.,RAS Trapeznikov Institute of Control Sciences
IFAC Proceedings Volumes (IFAC-PapersOnline) | Year: 2010

A new approach to the controllability and observability properties, based on controllability and observability matrices links, is considered. The approach is based on matrices A, Am integrals expansion Lemma and properties of the matrices function convolution in complex plane. Coefficients of characteristic equations and Faddeev's matrices in the resolvent expansion of the system dynamic matrix play a dominant role in matrices integrals expansion forming. The gramians expansion on dynamic system matrix spectrum provide a new notion for the solutions of the Lyapunov and Sylvester equations. The results are illustrated by the example for two-zones furnace control. © 2010 IFAC.

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