the article presents an algorithm for estimating the frequency of an offset sinusoidal signal. Delay operators are applied to the measured signal, and a linear regression model is constructed containing the measured s...
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ISBN:
(纸本)9789897585227
the article presents an algorithm for estimating the frequency of an offset sinusoidal signal. Delay operators are applied to the measured signal, and a linear regression model is constructed containing the measured signals and the constant vector depending on unknown frequency. For the vector regression model, the method cascade reduction is used. A reduction procedure is proposed that allows the original model to be reduced to a reduced one containing a smaller number of unknown parameters. Finally, using the classical gradient method was used to compare the efficiency of the proposed method.
作者：
Ito, KSophia Univ
Dept Mech Engn Fluid Lab Chiyoda Ku Tokyo 1028554 Japan
Water hydraulic servo system is attractive technology for safety environment. this paper deals with water hydraulic servomotor system. To overcome the highly nonlinearity of flow equation, it is linearized and paramet...
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ISBN:
(纸本)0780386531
Water hydraulic servo system is attractive technology for safety environment. this paper deals with water hydraulic servomotor system. To overcome the highly nonlinearity of flow equation, it is linearized and parametrized. Considering the effect of parameter perturbation, e.g. load fluctuation and friction parameters, a method of Lyapunov-based recursive design is applied to construct a robust rotational velocity controller. the effectiveness of the proposed controller is examined numerically.
the variable structure control problem of a class of stochastic distributed parameter system with uncertainty is discussed. Variable structure dynamic equation is established by employing nonlinear transformation. the...
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ISBN:
(纸本)0780386531
the variable structure control problem of a class of stochastic distributed parameter system with uncertainty is discussed. Variable structure dynamic equation is established by employing nonlinear transformation. the stability character has been analyzed. Based on previous conclusion, the variable structure regulator is designed for the system.
We investigate the bifurcation behavior of a discrete-time model of Internet congestion control system, which stands for a single link shared by multiple sources. By choosing the gain parameter and the number of sourc...
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ISBN:
(纸本)0780386531
We investigate the bifurcation behavior of a discrete-time model of Internet congestion control system, which stands for a single link shared by multiple sources. By choosing the gain parameter and the number of sources as bifurcation parameters, we prove the existence of period doubling bifurcation in the model and study the stability of bifurcation. We also find that chaotic behavior of the model can be controlled by limiting the amplitudes of the sending rates.
this paper is concerned with non-fragile reliable control for positive switched systems with actuator faults. Using linear co-positive Lyapunov functions with linear programming approach, a new non-fragile reliable co...
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ISBN:
(纸本)9781538695821
this paper is concerned with non-fragile reliable control for positive switched systems with actuator faults. Using linear co-positive Lyapunov functions with linear programming approach, a new non-fragile reliable controller is designed based on a gain matrix decomposition technique for positive switched systems. To increase the reliability of the controller, the controller gain perturbation term is introduced for the controller. then, the presented approach is developed to interval positive switched systems. Under the designed controller, the interval closed-loop system is positive and exponentially stable. Finally, a numerical example is given to illustrate the validity of the obtained results.
In this work, we describe an energy-based control method for under-actuated soft manipulators. the continuous dynamics of the soft robot are modeled by the differential geometry of Cosserat beams. through a finite-dim...
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ISBN:
(纸本)9789897585227
In this work, we describe an energy-based control method for under-actuated soft manipulators. the continuous dynamics of the soft robot are modeled by the differential geometry of Cosserat beams. through a finite-dimensional truncation, a reduced port-Hamiltonian model is obtained that preserves desirable passivity conditions. Exploiting the passivity, we propose a stabilizing energy-shaping controller that ensures the potential energy is minimal at the desired end-effector configuration. Finally, the effectiveness of the energy-based controller is demonstrated through simulations of a soft manipulator inspired by the tentacle of an octopus.
In this paper, the adaptive practical output tracking problem on a class of nonlinear interconnected systems is considered, in which the dynamic interactions and unmodelled dynamics depend on boththe subsystem inputs...
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ISBN:
(纸本)9781424478132
In this paper, the adaptive practical output tracking problem on a class of nonlinear interconnected systems is considered, in which the dynamic interactions and unmodelled dynamics depend on boththe subsystem inputs and outputs. Under the assumption that boththe references and their first-order derivatives are bounded, decentralized adaptive backstepping controllers have been proposed to make sure that all the signals in the interconnected systems are globally uniformly bounded, withthe tracking errors converging to a small set around the origin.
In the present work, we study the feedback control of a scale-free network of coupled Henon maps. A condition is derived for locally asymptotically stabilizing such a discrete-time complex dynamical network onto the h...
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ISBN:
(纸本)0780386531
In the present work, we study the feedback control of a scale-free network of coupled Henon maps. A condition is derived for locally asymptotically stabilizing such a discrete-time complex dynamical network onto the homogenous stationary state by applying local feedback controllers to a fraction of network nodes. Numerical studies verify the effectiveness.
Some convergence properties of the real-time calculation method for nonlinear optimal control problems are proved. We adopt the so-called 'algorithmic control' as one of the real-time optimization methods, whi...
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ISBN:
(纸本)9781424403417
Some convergence properties of the real-time calculation method for nonlinear optimal control problems are proved. We adopt the so-called 'algorithmic control' as one of the real-time optimization methods, which is based on the iterative algorithms for obtaining the numerical solutions. In this paper, we prove that either the necessary condition of optimality is satisfied or the value of the performance index is improved through the design process.
this paper develops a model predictive flocking control scheme for the Cucker-Smale multi-agent model. A decentralized controller is designed based only on neighboring measurements. Connectivity conditions are establi...
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ISBN:
(纸本)9781509035496
this paper develops a model predictive flocking control scheme for the Cucker-Smale multi-agent model. A decentralized controller is designed based only on neighboring measurements. Connectivity conditions are established for guaranteeing the convergence to a rigid flock. Finally, numerical simulation demonstrates the effectiveness of the control scheme.
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