Title :
Synchronization of chaotic Colpitts oscillators with applications to binary communications
Author :
Rubezic, Vesnu ; Ostojic, Rudoje
Author_Institution :
Electr. Eng. Dept., Univ. of Montenegro, Yugoslavia
Abstract :
In this paper, a synchronization of chaotic Colpitts oscillators with applications to binary communications is described. In this approach, the transmitter contains a chaotic Colpitts oscillator with a parameter that is modulated by an information signal. Each symbol to be transmitted is coded as an attractor in Colpitts oscillator. The receiver consists of a synchronous chaotic subsystem augmented with a low-pass filter, a circuit for addition and two multiplier circuits. A proof of the synchronization effect is demonstrated using Lyapunov´s theorem. It is shown that synchronization in the Colpitts system is a result of stable error dynamics between the transmitter and receiver. Results of simulations are presented
Keywords :
Lyapunov methods; chaos generators; digital communication; low-pass filters; synchronisation; Lyapunov´s theorem; attractor; binary communications; chaotic Colpitts oscillators; information signal; low-pass filter; multiplier circuits; stable error dynamics; synchronous chaotic subsystem; Chaos; Chaotic communication; Circuit simulation; Communication switching; Computational Intelligence Society; Large Hadron Collider; Logic; Orbits; Oscillators; Transmitters;
Conference_Titel :
Electronics, Circuits and Systems, 1999. Proceedings of ICECS '99. The 6th IEEE International Conference on
Conference_Location :
Pafos
Print_ISBN :
0-7803-5682-9
DOI :
10.1109/ICECS.1999.812246
