ABSTRACT

This chapter describes the realization of an electric circuit with chaotic behavior. This circuit proposed by Chua, contains a non linear resistance decomposed in some segments. The chapter introduces the Chua's circuit and the methodology for constructing a nonlinear resistor and discusses the experimental and simulation results of the Chua's circuit. It explores a method of chaotic transmission by parameter modulation of the Chua's circuit. The value of the negative resistance depends on the gain of the amplifier, and the effect stops when the output voltage reaches the supply voltage. The linearization by output injection is a usual tool to design an observer and consequently to resolve the synchronization problem. The experimental results showed that the synchronization of both systems (transmitter and receiver) was immediate and the communication result is correct.