Direction of coupling from phases of interacting oscillators: An information-theoretic approach - art. no. 055201
Direction of coupling from phases of interacting oscillators: An information-theoretic approach - art. no. 055201
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DOI：
10.1103/physreve.67.055201
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发表时间：
2003-05-01
影响因子：
2.4
通讯作者：
Stefanovska, A
中科院分区：
文献类型：
--
作者：
Palus, M;Stefanovska, A
提出了一种基于条件互信息的方向性指标，用于弱耦合振子的瞬时相位。它的能力，以区分单向双向耦合，以及揭示和量化的双向耦合的不对称性，证明了使用数值例子的准周期，混沌和嘈杂的振荡器，以及真实的人类心肺数据。
A directionality index based on conditional mutual information is proposed for application to the instantaneous phases of weakly coupled oscillators. Its abilities to distinguish unidirectional from bidirectional coupling, as well as to reveal and quantify asymmetry in bidirectional coupling, are demonstrated using numerical examples of quasiperiodic, chaotic, and noisy oscillators, as well as real human cardiorespiratory data.