Control Of Chaotic Circuits And Application In Communication

This paper principally discussed the control of chaos circuits and some application in communication.Chaos is a exterior and complex behavior because of inner random in nonlinear definitive system, and a movement seemingly similar to random. One of its basic characteristic is extremely sensitive to initial condition of system, that is to say, slight distinction of initial condition will be exponential increasing with time going on, and will not be taken on ultimately. Its chronic behavior can behave evident random, so it will not be used if not be controlled.Being a simple automatic circuit which can produce chaos , Chua's circuit is widely used to the research on chaos phenomenon in nonlinear circuit theory. This paper not only give some examples of non-resistance ,but have a detailed parameter assay.For the achievement in works ,this paper discussed using simulate inductance instead of actual inductance.Based on existed methods of chaotic control, a method of controlling chaos is proposed, in which only a single variable differential feedback is used. In terms of this method, a circuit is designed. Numerical and chaos simulations validated this method of controlling chaos.In this paper .the design of observers of a class of chaotic system is discussed .By means of scalar nonlinear signal ,one can construct a control law to implement the between the investigated chaotic system and its observer .The main distinctions between chaos and hyper-chaos are described ,and one can realize the conversion from chaos to hyper-chaos through changing circuit parameter .Lastly ,a point that hyper-chaos to is more applicable to secure communication than chaos is presented.