Proceedings ArticleDOI
Synchronization of chaotic Colpitts oscillators with applications to binary communications
V. Rubezic,R. Ostojic +1 more
- Vol. 1, pp 153-156
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TLDR
It is shown that synchronization in the Colpitts system is a result of stable error dynamics between the transmitter and receiver and is demonstrated using Lyapunov's theorem.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.read more
Citations
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Journal ArticleDOI
Adaptive synchronization of uncertain chaotic colpitts oscillators based on parameter identification
TL;DR: In this article, a non-linear observer for synchronization of a chaotic colpitts oscillator both in the non-adaptive and adaptive cases is proposed, where all parameters of a totally uncertain model of the oscillator can be estimated through adaptive synchronization.
Journal ArticleDOI
Dynamical properties and chaos synchronization of improved Colpitts oscillators
Jacques Kengne,Jean Chamberlain Chedjou,Jean Chamberlain Chedjou,G. Kenne,Kyandoghere Kyamakya +4 more
TL;DR: In this paper, the dynamics and synchronization of improved Colpitts oscillators designed to operate in ultra high frequency range are considered, and a synchronization strategy based upon the design of a nonlinear state observer is successfully adapted.
Journal ArticleDOI
Synchronization of improved chaotic Colpitts oscillators using nonlinear feedback control
TL;DR: In this paper, the model and the normalized state equations of the novel version of the Colpitts oscillator designed to operate in the ultra-high frequency range are presented.
Journal ArticleDOI
Coupled Chaotic Colpitts Oscillators: Identical and Mismatched Cases
TL;DR: In this article, a system consisting of two linearly coupled chaotic Colpitts oscillators is considered, where two different coupling configurations, namely coupled collector nodes (C-C) and coupled emitter nodes (E-E) have been investigated.
Journal ArticleDOI
Particle Filter-Based Synchronization of Chaotic Colpitts Circuits Combating AWGN Channel Distortion
TL;DR: In this article, the synchronization of chaotic Colpitts circuits using a particle filter (PF) to combat the additive white Gaussian noise (AWGN) channel effect is studied by numeric simulations.
References
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Journal ArticleDOI
Synchronization in chaotic systems
TL;DR: This chapter describes the linking of two chaotic systems with a common signal or signals and highlights that when the signs of the Lyapunov exponents for the subsystems are all negative the systems are synchronized.
Journal ArticleDOI
Synchronizing chaotic circuits
TL;DR: The authors describe the conditions necessary for synchronizing a subsystem of one chaotic system with a separate chaotic system by sending a signal from the chaotic system to the subsystem by sending signals from the Chaos Junction.
Journal ArticleDOI
Synchronization of Lorenz-based chaotic circuits with applications to communications
TL;DR: In this article, two possible approaches to secure communications are demonstrated with the Lorenz circuit implemented in both the transmitter and receiver, where a chaotic masking signal is added at the transmitter to the message, and at the receiver, the masking is regenerated and subtracted from the received signal.
Journal ArticleDOI
Chaos shift keying: modulation and demodulation of a chaotic carrier using self-synchronizing Chua's circuits
TL;DR: In this article, a technique for transmitting digital information using a chaotic carrier is described, in which each symbol to be transmitted is coded as an attractor in Chua's circuit.
Journal ArticleDOI
Experimental demonstration of secure communications via chaotic synchronization
TL;DR: Secure communications via chaotic synchronization is experimentally demonstrated using Chua's circuit with energy lost in the information-bearing signal and reduction after the recovery process.