On the realization and design of chaotic spread spectrum modulation technique for secure data transmission

In this paper, an exciting recent development in non-linear dynamics and realization of Chaos and its applications in Secure Message Communication is presented. The Chaos oscillator based on non-linear resistor has been taken as Chaos generator at the transmitting and receiving side. The phenomenon of secure communication with chaos spread spectrum has been investigated experimentally. A Chaos signal which has been generated from a chaos generator has been modulated with the message signal to be transmitted, and subsequently demodulated using the same chaotic signal generated at the receiving end, to enable secure message communication. The results of experimental investigation have been presented in the paper.