Results 1 to 10 of about 1,297,153 (289)

Time-Delay Interferometry

open access: yesLiving Reviews in Relativity, 2014
Equal-arm detectors of gravitational radiation allow phase measurements many orders of magnitude below the intrinsic phase stability of the laser injecting light into their arms.
Massimo Tinto, Sanjeev V. Dhurandhar
doaj   +3 more sources

Time-Delay Interferometry

open access: yesLiving Reviews in Relativity, 2005
Equal-arm interferometric detectors of gravitational radiation allow phase measurements many orders of magnitude below the intrinsic phase stability of the laser injecting light into their arms.
Dhurandhar Sanjeev V., Tinto Massimo
doaj   +2 more sources

Modified version of the cross-correlation function to measure drought occurrence time-delay correlation

open access: yesJournal of Water and Climate Change, 2023
According to the importance of assessing the presence of time delay between the occurrence of various hydrological and meteorological phenomena, the study aim is to introduce a new method (with high ability and non-sensitivity to the abnormality of ...
Mohammad Reza Mahmoudi   +1 more
doaj   +1 more source

Accurate and Efficient Simulation of Very High-Dimensional Neural Mass Models with Distributed-Delay Connectome Tensors

open access: yesNeuroImage, 2023
This paper introduces methods and a novel toolbox that efficiently integrates high-dimensional Neural Mass Models (NMMs) specified by two essential components. The first is the set of nonlinear Random Differential Equations (RDEs) of the dynamics of each
Anisleidy González Mitjans   +10 more
doaj   +1 more source

Bionic Covert Underwater Acoustic Communication Based on Time–Frequency Contour of Bottlenose Dolphin Whistle

open access: yesEntropy, 2022
In order to meet the requirements of communication security and concealment, as well as to protect marine life, bionic covert communication has become a hot research topic for underwater acoustic communication (UAC).
Lei Xie   +3 more
doaj   +1 more source

Enhanced 2-DOF PID Controller Tuning Based on an Uncertainty and Disturbance Estimator With Experimental Validation

open access: yesIEEE Access, 2021
In this paper a novel tuning procedure for Two-Degree-of-Freedom (2-DOF) PID controllers is proposed. The tuning methodology is based on an Uncertainty and Disturbance Estimator.
Vicente Balaguer   +3 more
doaj   +1 more source

A Secure Optical Body Area Network Based on Free Space Optics and Time-Delayed 2D-Spectral/Spatial Optical CDMA

open access: yesApplied Sciences, 2023
Free space optics (FSO)-based optical body area networks (OBANs) are receiving massive attention as an opportunity to address the limitations of their radio frequency (RF)-based counterparts.
Firdos Kanwal   +4 more
doaj   +1 more source

Application of Empirical Bode Analysis for Delay-Margin Evaluation of Fractional-Order PI Controller in a Renewable Distributed Hybrid System

open access: yesFractal and Fractional, 2023
For an uninterrupted power supply, renewable energy promises to be a suitable alternative compared to the conventional sources. System delays or communication delays may cause significant synchronization imbalances between various components in big ...
Soumen Biswas   +3 more
doaj   +1 more source

Phase effect in time-stamped accelerometer measurements – an experimental approach [PDF]

open access: yesInternational Journal of Metrology and Quality Engineering, 2012
The phase error in a high quality accelerometer was investigated on the basis of systematic experiments on a prototype platform permitting controlled vertical harmonic oscillations.
Moschas F., Stiros S.
doaj   +1 more source

An observer-based controller design for nonlinear discrete-time switched systems with time-delay and affine parametric uncertainty [PDF]

open access: yesArchives of Control Sciences, 2020
This paper proposes a design procedure for observer-based controllers of discrete-time switched systems, in the presence of state’s time-delay, nonlinear terms, arbitrary switching signals, and affine parametric uncertainties.
N.A., Baleghi, M.H., Shafiei
doaj   +1 more source

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