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Revealing mutual influence of oscillatory systems from the observation data

In different fields of physical research, we often meet the problem of distinguishing between bidirectional and unidirectional couplings of oscillatory systems, i.e., mutual influence and one-way influence, on the basis of the observed time series. In this work, it is shown that a widely used approa...

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Published in:Radiophysics and quantum electronics 2013-03, Vol.55 (10-11), p.662-675
Main Authors: Smirnov, D. A., Bezruchko, B. P.
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description In different fields of physical research, we often meet the problem of distinguishing between bidirectional and unidirectional couplings of oscillatory systems, i.e., mutual influence and one-way influence, on the basis of the observed time series. In this work, it is shown that a widely used approach, based on the calculation of prediction errors of empirical models (Granger causality), may give spurious conclusions on bidirectional coupling if a sampling interval exceeds a certain intrinsic time scale of the studied systems. Taking this effect into account, we propose and illustrate by standard examples a statistical test which allows one to reveal bidirectional coupling with specified confidence probability.
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source Springer Nature
subjects Astronomy
Astrophysics and Astroparticles
Bidirectional
Confidence intervals
Couplings
Hadrons
Heavy Ions
Joining
Lasers
Mathematical and Computational Physics
Mathematical models
Nuclear Physics
Observations and Techniques
Optical Devices
Optics
Photonics
Physics
Physics and Astronomy
Quantum Optics
Sampling
Statistical tests
Theoretical
Time series
title Revealing mutual influence of oscillatory systems from the observation data
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