Results 241 to 250 of about 22,475,071 (287)
Some of the next articles are maybe not open access.
Papers presented at the May 3-5, 1960, western joint IRE-AIEE-ACM computer conference on - IRE-AIEE-ACM '60 (Western), 1960
The Convair-Astronautics Time Delay System is being developed to make possible the delay of analog functions over a greater range than is possible with more conventional means. The system is designed to handle ten channels of analog data, delay each for the same time interval, and reproduce the functions within 0.1% of the original composition for all ...
Charles D. Hofmann, Harold L. Pike
openaire +1 more source
The Convair-Astronautics Time Delay System is being developed to make possible the delay of analog functions over a greater range than is possible with more conventional means. The system is designed to handle ten channels of analog data, delay each for the same time interval, and reproduce the functions within 0.1% of the original composition for all ...
Charles D. Hofmann, Harold L. Pike
openaire +1 more source
Stabilization of time delay systems
Proceedings of the 2000 American Control Conference. ACC (IEEE Cat. No.00CH36334), 2000We first consider the problem of stabilizing a first-order plant with dead time using a constant gain controller. Using a version of the Hermite-Biehler theorem applicable to quasipolynomials, a complete analytical characterization of all stabilizing gain values is provided as a closed form solution.
Guillermo J. Silva +2 more
openaire +1 more source
Approximation of time-delay systems
Proceedings of the 2000 American Control Conference. ACC (IEEE Cat. No.00CH36334), 2000We propose a new method for approximating time-delays in dynamical systems. A weighted H/sup /spl infin// norm criterion is minimized to obtain rational approximation of e/sup -sd/. We report the approximation in a diagram relating both the amount of time delay and the bandwidth to the order of the approximating rational function for a given level of ...
Al-Amer, Samir, AL-Sunni, Fouad
openaire +2 more sources
Synchronization of time-delayed systems
Physical Review E, 2007In this paper we study synchronization in linearly coupled time-delayed systems. We first consider coupled nonidentical Ikeda systems with a square wave coupling rate. Using the theory of the time-delayed equation, we derive less restrictive synchronization conditions than those resulting from the Krasovskii-Lyapunov theory [Yang Kuang, (Academic Press,
Maoyin, Chen, Jürgen, Kurths
openaire +2 more sources
OSCILLATIONS IN AN EXCITABLE SYSTEM WITH TIME-DELAYS
International Journal of Bifurcation and Chaos, 2003Transition from excitability to asymptotic periodicity in an excitable system, modeled by the FitzHugh–Nagumo equations, with multiple time-delays, is analyzed. It is demonstrated that, for intermediate time-lags, the system has two coexisting attractors, a hyperbolic stable fixed point and a stable limit cycle.
Nikola Buric, Nebojsa Vasovic
openaire +2 more sources
Instrumental Variable System Identification for Time-Delayed system with Non-Integer Time-Delay
2020 17th International Multi-Conference on Systems, Signals & Devices (SSD), 2020In this paper a bias eliminated system identification method for an output error model is proposed. The system under consideration is a time delayed system. The identification is done via a discrete time (DT) model with non-integer time delay. In a Discrete time, system, the time delay is a non-integer multiple of the sampling period.
Md. Muzakkir Quamar +1 more
openaire +1 more source
1999
A time-delay under the context of process control systems may be defined as the time interval from the application of a control signal to any observable change in the process variable. Time delays have always been among the most difficult problems encountered in process control. It could occur for various reasons and in different magnitudes.
Qing-Guo Wang +2 more
openaire +1 more source
A time-delay under the context of process control systems may be defined as the time interval from the application of a control signal to any observable change in the process variable. Time delays have always been among the most difficult problems encountered in process control. It could occur for various reasons and in different magnitudes.
Qing-Guo Wang +2 more
openaire +1 more source
Canonical forms of time-delay systems
2012 IEEE 51st IEEE Conference on Decision and Control (CDC), 2012The paper focuses on a long standing problem which consists in identifying those time-delay systems which can be transformed into a delay-free system by a suitable change of state coordinates. Both linear and nonlinear systems are considered. It is shown that the so-called cyclic vectors introduced by Olbrot and co-workers are rehabilitated through the
CALIFANO, Claudia, C. H. Moog
openaire +3 more sources
Analyzing time–delay feedback systems
Proceedings of the 5th Experimental Chaos Conference, 2001We present a method to analyse time delay feedback system. The advantage of this method, compared to other tools in time series analysis, is that it does not depend on the dimension of the chaotic attractor of the system. It solely depends on the dimensionality of the equations of motion.
Hegger R +6 more
openaire +2 more sources
Robust stability of time-delay systems
IEEE Transactions on Automatic Control, 1994Summary: There are two fundamental results available when we study stability of a polynomial family that is described by convex polytope in the coefficient space: The edge theorem and the theory based on the concept of convex directions. Many known results can be explained with these two results.
Vladimir L. Kharitonov, Alexey P. Zhabko
openaire +2 more sources