the paper presents connections between criteria which make three types of objects possible to recognize, namely: edges, planes and corners. these criteria can be applied while a binaural sonar system is used. It is sh...
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the paper presents connections between criteria which make three types of objects possible to recognize, namely: edges, planes and corners. these criteria can be applied while a binaural sonar system is used. It is shown that the criteria are specific forms of a general equation. the form of the equation depends on a single coefficient. In the paper the meaning of this coefficient is discussed. the constructions of the objects arrangements are presented which are bound with other values of the coefficient.
the problem of collective behavior of autonomous agents is discussed. Based on state dependent communication graphs we analyze a family of non-linear flocking models by establishing sufficient initial conditions so as...
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the problem of collective behavior of autonomous agents is discussed. Based on state dependent communication graphs we analyze a family of non-linear flocking models by establishing sufficient initial conditions so as connectivity and thus asymptotic flocking is ensured. We discuss models with non-linear uniformly bounded connection rates with and without delays.
the paper presents the proposition of a numerical model of the human circulatory system modification for the purpose of physical reproduction of conditions prevailing in the apex of the heart on a hybrid simulator. th...
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the paper presents the proposition of a numerical model of the human circulatory system modification for the purpose of physical reproduction of conditions prevailing in the apex of the heart on a hybrid simulator. this is a physical-numerical stand which performs a generation of hydraulic conditions occurring in the selected points of circulatory system. However, so far, there was no possibility of reproduction the apex of the heart point. the paper presents the nature of the problem and suggest solution. the results of simulation tests and analysis of assumptions correctness are shown. Description of further development works is included.
In this paper, we develop a tube based model reference adaptive configuration for a class of nonlinear dynamic systems with actuator failure which not only guarantees closed loop stability, asymptotically exact tracki...
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In this paper, we develop a tube based model reference adaptive configuration for a class of nonlinear dynamic systems with actuator failure which not only guarantees closed loop stability, asymptotically exact tracking and robustness to a nonlinear perturbation, and to an external disturbance with unknown bounds, but also diminishes the control cost with respect to some criterion.
In this paper, the possibility of the application of the Balance-Based Adaptive Control (B-BAC) methodology to control the second order system is discussed. Conventionally, the B-BAController is based on the simplifie...
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In this paper, the possibility of the application of the Balance-Based Adaptive Control (B-BAC) methodology to control the second order system is discussed. Conventionally, the B-BAController is based on the simplified first order dynamical model of the process, which stands as the significant limitation when the real system is of the higher order. Due to the application of the suggested quasi-cascade control structure, this constraint is removed and the superiority of this approach is presented by the simulation experiments.
this paper presents a new concept of modeling of LTI SISO discrete-time fractional-order systems, in which the Laguerre filters are employed to model both 1) the Grünwald-Letnikov fractional difference and 2) a d...
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this paper presents a new concept of modeling of LTI SISO discrete-time fractional-order systems, in which the Laguerre filters are employed to model both 1) the Grünwald-Letnikov fractional difference and 2) a dynamics of the LTI SISO fractional-order system. Such a `double-Laguerre' concept yields original accuracy and computational results at both modeling stages, illustrated with a series of simulation examples.
In this paper, the problem of modeling of the energy consumption of a single component of the assembly line is considered. the motivation is shortly presented and the procedure of the initial preprocessing of the meas...
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In this paper, the problem of modeling of the energy consumption of a single component of the assembly line is considered. the motivation is shortly presented and the procedure of the initial preprocessing of the measurement data is described. then, the conventional discrete time auto regressive models are considered and their applicability is compared withthe suggested Representative Vector Method (RVM). this method is based on the storing of the re-sampled data in the shorter representative vector withthe level of compression depending on the assumed modeling accuracy.
this paper presents the concepts of the stereovision system equipped with only one camera with adaptation allowing to obtain full stereo picture for acquirement a digital model of the transport device workspace. Speci...
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this paper presents the concepts of the stereovision system equipped with only one camera with adaptation allowing to obtain full stereo picture for acquirement a digital model of the transport device workspace. Special author's care was focused on the system validation, having regard its specific architecture. the present stereovision system is part of Autonomous Navigation System solutions, dedicated to the overhead travelling cranes. All tests were conducted on the physical model of overhead travelling crane with hosting capability 150kg.
the paper presents a new approach to derivation of a linear model representing an approximation of dynamic response determined for a model estimated within discrete time identification. the approximation is calculated...
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the paper presents a new approach to derivation of a linear model representing an approximation of dynamic response determined for a model estimated within discrete time identification. the approximation is calculated using with new algorithm, that minimize the approximation error with application a non-quadratic performance index. the used performance index is quite close to the absolute norm of error, but has better convergence features. the recursive formula for derivation of the approximation model coefficients is derived and tested on two different examples of two dynamic processes.
this paper presents a new simple form of a polynomial matrix σ-inverse introduced as a result of research works on minimum variance control (MVC) for LTI MIMO nonsquare systems. A new approach to construction of a σ...
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this paper presents a new simple form of a polynomial matrix σ-inverse introduced as a result of research works on minimum variance control (MVC) for LTI MIMO nonsquare systems. A new approach to construction of a σ-inverse of a nonsquare polynomial matrix can result in e.g. pole-free design of MVC, which is provided by specially selected degrees of freedom of the σ-inverse. A simulation example in the Matlab ® environment illustrates theoretical achievements of the paper.
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