Results 261 to 270 of about 11,508,189 (315)

Fusion of time delayed measurements with uncertain time delays

Proceedings of the 2005, American Control Conference, 2005., 2005
In this paper we consider the problem of estimating the state of a dynamic system from a sequence of observations that are imprecisely timestamped. We argue that this problem can be addressed using the covariance union (CU) technique, and we demonstrate its application in a particular example.
Simon J. Julier, Jeffrey K. Uhlmann
openaire   +1 more source

Time delay in tunneling: Transmission and reflection time delays

Physical Review A, 1988
The problem of time delay in one-dimensional quantum-mechanical scattering by a potential barrier is studied in the framework of time-dependent scattering theory. It is shown how the concept of sojourn time can be used to define three separate time delays: the time delay for transmission through the barrier, the time delay for reflection, and the total
, Jaworski, , Wardlaw
openaire   +2 more sources

TIME-DELAYED FEEDBACK CONTROL OF TIME-DELAY CHAOTIC SYSTEMS

International Journal of Bifurcation and Chaos, 2003
This paper addresses time-delayed feedback control (DFC) of time-delay chaotic systems. To extend the DFC approach to time-delay chaotic system, alter having been successfully used in chaotic systems without time-delays, the standard feedback control (SFC) method is firstly employed to show the main control technique in this paper based on one error ...
Xinping Guan   +3 more
openaire   +1 more source

Decoupling time-delays

Proceedings of the 41st IEEE Conference on Decision and Control, 2002., 2003
This note sketches an extension to systems with time delays of the decoupling technique developed by Clarke (1993) for generalized Bolza problems without delays. We indicate briefly how it can be used to derive necessary conditions for such problems.
Norma Ortiz, Peter R. Wolenski
openaire   +1 more source

Time delay estimation

ICASSP '76. IEEE International Conference on Acoustics, Speech, and Signal Processing, 2005
A maximum likelihood (ML) estimator is derived for determining time delay between two signals observed in the presence of uncorrelated noise, under the assumptions of known signal and noise spectral characteristics. This ML estimator can be realized as a pair of receiver prefilters followed by a cross correlator.
G. Clifford Carter, Charles H. Knapp
openaire   +1 more source

Telemanipulation with Time Delays

The International Journal of Robotics Research, 2004
In this paper we survey the development of the wave variable concept and examine wave-based teleoperation. We study the behavior of force reflecting systems under unknown but constant transmission delays, ranging from periods less than the human reaction time to several seconds.
Günter Niemeyer   +1 more
openaire   +1 more source

TIME DELAY ESTIMATION

Journal of Time Series Analysis, 1988
AbstractThe problem considered is that of estimating the delays that arise when a waveform propagates across an array. Problems that arise in previous estimation techniques when the signal‐to‐noise ratio is low are reduced by introducing an improved weighting of frequencies into the formulae and by using finite parameter models to estimate this weight ...
Hannan, E. J., Thomson, P. J.
openaire   +1 more source

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