This paper analyses a method by which chaos is generated using electronic circuits. The chaos generator required for this purpose is based on utilizing the one dimensional piece wise linear Bernoulli Shift map. The iterative map is realized using a feedback system consisting of programmable amplifier and a unity-gain sample-and-hold amplifier. The sample and hold amplifier provides necessary de...

We demonstrate here a new dual receiver synchronization scheme that works because we are able to store samples over an entire bit period and then perform an intelligent comparison by methods we introduce. We discuss advantages for message camouflage of transmissions near the noise floor. Our results show better bit error probability performance in comparison to previously published methods. Thi...

In this paper, the chaos signal results from some selected dynamical modes formed from a dc biased Josephson junction is used in amplitude modulation instead of the usually used carrier. This will result in a modulated signal that is not possible to be detected without using the same signal used in the transmitter.

We propose a new perspective on communication using chaos. A binary message is encoded into the temporally causal relations on a coupled maps ring of N chaotic nodes. From the analysis of temporal transfer entropy, the masked information can be recovered from transmitted signals at the receiver. The communication scheme has been demonstrated to be robust against external noise and some traditio...

Owing to their rich dynamical structures, chaotic systems show great potential for the design and employment of chaotic communication devices. The basic idea is that the underlying attractors and repellors of the chaotic system can be used as natural guides for information through suitable intervention in its dynamics (see e.g. Farmer [1], Carroll [2] and Hayes [3] and references therein). Coup...

In this paper, synchronization of two chaotic signals is studied and analyzed. A nonlinear recursive backstepping scheme is utilized to design an appropriate control input signal that achieves synchronization between the two chaotic signals. For the sake of comparison, an alternative master-slave synchronizing controller is designed and the two controllers are compared. Numerical simulations ar...

In this paper, synchronization and anti-synchronization of Bhalekar-Gejji chaotic system is proposed with application to secure communication. Further its analog circuit design and simulation is carried out using analog components. Proposed synchronization and anti-synchronization with application to secure communication is achieved using robust SMC. For communication, the information signal is...

Information Security is an important problem in communication. Information includes text, audio, video, image etc. When information is transferred through various networks, there is high chance of unauthorized access. In many fields such as medical science, military, geographic satellite images etc, high security of information is guaranteed using encryption. As a result, the data confidentiali...

In this work we describe a simple method of encoding information at real time in the inter-spike intervals of a homoclinic chaotic system. This has been experimentally tested by means of an instantaneous synchronization between the laser intensity of a CO2 laser with feedback in the regime of Sil'nikov chaos and an external pulsed signal of very low power. The information is previously encoded ...

Study objective: Good communication is important in patient care and plays an essential part of teamwork and patient safety. Communication in the emergency department (ED) can be chaotic, with the potential for error resulting from communication overload and problems of communication. The nurse in charge of the ED plays a crucial role in maintaining communication flow. The aims of this study ar...