Synchronization and control of spatiotemporal chaos : analysis of phenomena and application to information processing

点击翻译按钮获取中文摘要

Recently, the following problems are studying extensively in various fields of science and technology.・Stabilization of unstable periodic orbits (UPOs) embedded in chaos (controlling chaos).・Synchronization of chaos and analysis of related bifurcation phenomena.・Application of chaos to information and communication engineerings.In this research we have considered these problems for electronic circuits and have obtained the following results.・We have clarified periodic phenomena, chaos and bifurcation phenomena from an artificial neural cell described by a nonautonomous differential equation.・We have constructed a network of the cells based on an intermittent meanfield connection. Then, we have classified phenomena from the network and clarified parameter regions in which the phenomena take place.・We have proposed a novel chaos control method by using an impulsive error feedback. Ap-plying the method to the network, a desired UPO can be stabilized efficiently and the system can serve a rich source for information coding.・We have proposed a novel secure multiplex communication method by using chaotic pulsetrains and verified its efficiency by both theory and experiments. Especially, the de-multiplex system includes a self-organizing algorithm and has much better performance than conventional ones.