Feedback control of wave segments in an excitable medium  

作　　者：吴宁杰 高洪俊 应和平 

机构地区：[1]Jiangsu Key Laboratory for Numerical Simulation of Large Scale Complex Systems,School of Mathematical Sciences,Nanjing Normal University [2]Institute of Modern Physics and Department of Physics,Zhejiang University

出　　处：《Chinese Physics B》2013年第5期187-190,共4页中国物理B（英文版）

基　　金：Project supported by the National Natural Science Foundation of China (Grant Nos. 11105074 and 11005026);the Natural Science Foundation of the Higher Education Institutions of Jiangsu Province, China (Grant Nos. 11KJB140004 and 11KJA110001);the Qing Lan Project of Jiangsu Province, China

摘　　要：Depending on the excitability of the medium, a propagating wave segment will either contract or expand to fill the medium with spiral waves. This paper aims to introduce a simple mechanism of feedback control to stabilize such an expansion or contraction. To do this, we lay out a feedback control system in a block diagram and reduce it into a bare, universal formula. Analytical and experimental findings are compared through a series of numerical simulations of the Barkley model.Depending on the excitability of the medium, a propagating wave segment will either contract or expand to fill the medium with spiral waves. This paper aims to introduce a simple mechanism of feedback control to stabilize such an expansion or contraction. To do this, we lay out a feedback control system in a block diagram and reduce it into a bare, universal formula. Analytical and experimental findings are compared through a series of numerical simulations of the Barkley model.

关 键 词：feedback control wave segments excitable medium 

分 类 号：O231[理学—运筹学与控制论]