Results 271 to 280 of about 88,503 (314)

A Model for Feedback-Stabilization in Sillenites

CLEO/Europe Conference on Lasers and Electro-Optics, 1998
When recording phase volume holograms in photorefractive crystals, stabilization is often desirable so that the external conditions are constant during recording. A method of stabilization by using phase modulation in a feedback loop has been developed by Frejlich and Kamshilin. The method has been applied to LiNbO3, yielding the surprising side effect
V. P. Kamenov, B. I. Sturman, J. Frejlich, K. H Ringhofer   +3 more
openaire   +1 more source

On the stability of convolution feedback systems with dynamical feedback

Automatica, 1975
This paper considers distributed n-inputn-output convolution feedback systems characterized by y = G"1*e, z = G"2*y and e = u - z, where the forward path transfer function [email protected]^"1 and the feedback path transfer function [email protected]^"2 both contain a real single unstable pole at different locations.
openaire   +2 more sources

Existence of SDRE stabilizing feedback

IEEE Transactions on Automatic Control, 2001
The state-dependent Riccati equation (SDRE) approach to nonlinear system stabilization relies on representing a nonlinear system's dynamics in a manner to resemble linear dynamics, but with state-dependent coefficient matrices that can then be inserted into state-dependent Riccati equations to generate a feedback law.
Jeff S. Shamma, James R. Cloutier
openaire   +1 more source

Stability of Feedback Systems and Stabilization

2014
By way of motivation, consider the linear one-dimensional controlled system $$ \dot{x} = ax + u,\quad x\left( 0 \right) = \xi \in {\mathbb{R}}, $$ (6.1) with real parameter a > 0.
Hartmut Logemann, Eugene P. Ryan
openaire   +1 more source

Stabilizing time-varying feedback

IFAC Proceedings Volumes, 1995
Abstract We survey recent results on the stabilization problem which show the interest of time-varying feedback laws and time-varying output feedback laws.
openaire   +1 more source

Boundary Feedback Stabilization of Shallow Shells

SIAM Journal on Control and Optimization, 2003
Summary: We consider the stabilization of the shallow shell by boundary feedbacks where the model has a middle surface of any shape. First, we put the shallow shell model in a suitable semigroup scheme. The existence, the uniqueness, and the properties of solutions to the shallow shell are then treated by the semigroup approach and the regularity of ...
Shugen Chai, Yuxia Guo, Peng-Fei Yao
openaire   +2 more sources

Feedback and Stabilization

1990
The introductory Sections 1.2 to 1.5, which the reader is advised to review at this point, motivated the search for feedback laws to control systems. One is led then to the general study of the effect of feedback and more generally to questions of stability for linear and nonlinear systems.
openaire   +1 more source

Stability of Feedback Systems with Uncertain Dynamics

IFAC Proceedings Volumes, 1992
Abstract The application of functional analytic methods to the stability of feedback control systems with nonlinear, imprecise or unknown models is discussed. A method is proposed to find the appropiate center and radius parameters of the Conicity Stability Criterion.
A. Barreiro, J. Aracil
openaire   +1 more source

Feedback stabilization of spin systems

Proceedings of the 44th IEEE Conference on Decision and Control, 2006
The feedback stabilization problem for ensembles of coupled spin 1/2 systems is discussed. The noninvasive nature of the bulk measurement allows for a fully unitary and deterministic closed loop. The Lyapunov-based feedback design does not require that the spins are selectively addressable.
openaire   +1 more source

Lag-Stabilized Force Feedback Damping

Journal of Intelligent and Robotic Systems, 1998
zbMATH Open Web Interface contents unavailable due to conflicting licenses.
Rush D. Robinett III, Ben J. Petterson, Jill C. Fahrenholtz   +2 more
openaire   +2 more sources