We present our works concerning controllability problem for Timoshenko beams rotating in a horizontal plane. Characterization of the set of null-reachability is given, the optimal control problem is stated and a numer...
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ISBN:
(纸本)9781467321242
We present our works concerning controllability problem for Timoshenko beams rotating in a horizontal plane. Characterization of the set of null-reachability is given, the optimal control problem is stated and a numerical method of obtaining the solution is presented.
this study aims to propose the first unsupervised deep learning based framework to detect primitive shapes in unorganized point clouds. the benefits of the proposed model are as follows: first, modeling primitive shap...
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ISBN:
(纸本)9781728177090
this study aims to propose the first unsupervised deep learning based framework to detect primitive shapes in unorganized point clouds. the benefits of the proposed model are as follows: first, modeling primitive shapes mathematically and making the annotation and generation of training data automatically can assist in training a network in an unsupervised manner without using any pre-annotated datasets. the proposed approach is able to expand to other 3D point clouds related tasks when the datasets are not big enough. Experiments and results demonstrate that the proposed unsupervised methods can achieve an accuracy on par with supervised approach for primitive shape detection in 3d point clouds.
A development of advanced control methods based on robustness, optimality and prediction is an important and challenging task. In recent years, a new control approaches have emerged to replace or augment conventional ...
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ISBN:
(纸本)9781479987016
A development of advanced control methods based on robustness, optimality and prediction is an important and challenging task. In recent years, a new control approaches have emerged to replace or augment conventional control engineering methods. the paper presents: design, verification and comparison of three advanced methods (IMC, MPC, PLM) applied in the control of dynamic processes with complex dynamics. In this paper three different methods were tested and applied to the position control of pneumatic servodrives. the presented and tested methods guarantee robust stability and high performance of the pneumatic servodrives control.
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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ISBN:
(纸本)9781467355087;9781467355063
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.
this paper is concerned with designing a fuzzy robust H-infinity filter for a class of continuous-time nonlinear systems via Takagi-Sugeno (T-S) fuzzy affine dynamic models based on piecewise Lyapunov functions. Atten...
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ISBN:
(纸本)9781467318723;9781467318716
this paper is concerned with designing a fuzzy robust H-infinity filter for a class of continuous-time nonlinear systems via Takagi-Sugeno (T-S) fuzzy affine dynamic models based on piecewise Lyapunov functions. Attention is focused on the analysis and design of an admissible full-order filter such that the filtering error dynamics is stochastically stable and a prescribed H-infinity attenuation level is guaranteed. It is assumed that the plant premise variables are not measurable so that the filter implementation with state space partition may not be synchronous withthe state trajectories of the plant. Based on piecewise quadratic Lyapunov functions (PQLFs) combined with S-procedure and some matrix inequality linearization techniques, some new results are established for filtering design of the underling continuous-time T-S fuzzy affine systems. An examples is given to illustrate the effectiveness and applicability of the proposed design methods.
In the paper a method of synthesis of a neural controller which goal is to reduce effects of coupling of the nonlinear multi-input multi-output (MIMO) plant inputs and outputs is presented. the designed neural control...
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ISBN:
(纸本)9781479987016
In the paper a method of synthesis of a neural controller which goal is to reduce effects of coupling of the nonlinear multi-input multi-output (MIMO) plant inputs and outputs is presented. the designed neural controller contains a set of neural nets that determine values of parameters of linear decoupling controllers calculated for the adopted nonlinear plant model at its operating points. A known dynamic decoupling technique is used to generate training and evaluation data for the synthetized neural nets. the resulting neural (gain-scheduling) controller varies its parameters depending on the current plant operating point.
In the paper the problem of action recognition withthe help of Markov models is considered. We propose an algorithm aiming at reduction of the false positive rate. We state a hypothesis that these errors are caused b...
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ISBN:
(纸本)9781728109336
In the paper the problem of action recognition withthe help of Markov models is considered. We propose an algorithm aiming at reduction of the false positive rate. We state a hypothesis that these errors are caused by learning gesture sequences representing rare movements and not that containing popular ones. Our algorithm translates the sequence of gestures into the corresponding Markov models which are used for a preliminary classification. the obtained evaluation coefficients (numbers of proper classifications) are then used to determine the best weights in a combined model composed of these models. In order to find a compromise between the number of true positives and the number of false positives, the power function of weights is examined.
In the paper a novel method of analog modeling of fractional order integrators is presented. In particular, two special cases are discussed, i.e. integrators of order alpha = 0.25, and alpha = 0.5. the method proposed...
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ISBN:
(纸本)9781457709142
In the paper a novel method of analog modeling of fractional order integrators is presented. In particular, two special cases are discussed, i.e. integrators of order alpha = 0.25, and alpha = 0.5. the method proposed is based on the domino ladder approximation of irrational transfer function. It allows to obtain an analog model using only electric elements like resistors and capacitors of standard produced values.
In this work, the estimation of Linear ParameterVarying (LPV) models in Output-Error (OE) form is addressed. In particular, it is assumed that the scheduling variable is noisy, a condition often encountered in practic...
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there is presented a method for calculation of inertial model for an open-loop oscillating system based on the system step response. Presented method is simple and can be easily used in automatic control practice. Ide...
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ISBN:
(纸本)9781479950812
there is presented a method for calculation of inertial model for an open-loop oscillating system based on the system step response. Presented method is simple and can be easily used in automatic control practice. Identified model can be applied in control algorithms more advanced than the PID controller, for instance in the predictive control.
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