In chaos-based digital communication systems, a correlator is normally used in the coherent detection of the signal. In this paper, an optimum design for such correlatortype receivers is presented. A chaos-based digital communication system with one chaos generator has been used to exemplify the performance of the design. The design can be extended to systems with multiple generators, where the...

In the present work, the chaotic motion control of a mobile robot is studied, in order to cover a terrain with unpredictable way. The proposed control strategy is based on a chaotic path planning generator. As a chaotic generator, we have used three different nonlinear dynamical systems, the Chua oscillator, the Lorenz system, and a nonlinear circuit with a nonlinear resistor having an i-v char...

The logistic map is one of the simple systems exhibiting order to chaos transition. In this work we have investigated the possibility of using the logistic map in the chaotic regime (logmap) for a pseudo random number generator. To this end we have performed certain statistical tests on the series of numbers obtained from the logmap. We find that the logmap passes these tests satisfactorily and...

In this paper we describe a theoretical model of chaos machine, which combines the benefits of hash function and pseudo-random function, forming flexible one-way push-pull interface. It presents the idea to create a universal tool (design pattern) with modular design and customizable parameters, that can be applied where randomness and sensitiveness is needed (random oracle), and where appropri...

‎in the following text for arbitrary $x$ with at least two elements‎, ‎nonempty countable set $gamma$‎ ‎we make a comparative study on the collection of generalized shift dynamical systems like $(x^gamma,sigma_varphi)$ where $varphi:gammatogamma$ is an arbitrary self-map‎. ‎we pay attention to sub-systems and combinations of generalized shifts with counterexamples regarding devaney‎, ‎exact dev...

An approach for creating a low-cost Chaos Pulsed-Doppler Radar is presented. The objective of this effort is to develop a practical realization of a Chaotic Radar with performance advantages over other approaches. Many groups [2], [3] have proposed that Chaotic Waveforms are an effective radar signal generator due to: the relatively low cost of producing complex wideband waveforms and the diffi...

This work presents an autonomous mobile robot in order to cover an unknown terrain “randomly”, namely entirely, unpredictably and evenly. This aim is very important, especially in military missions, such as the surveillance of terrains, the terrain exploration for explosives and the patrolling for intrusion in military facilities. The “heart” of the proposed robot is a chaotic motion controller...

In this paper, a high dimensional chaotic systems based mixed keystream generator is proposed to secure the voice data. As the voice-based communication becomes extensively vital in the application areas of military, voice over IP, voice-conferencing, phone banking, news telecasting etc. It greatly demands to preserve sensitive voice signals from the unauthorized listening and illegal usage ove...

Chaos-based communications are a promising application of chaos theory and nonlinear dynamics. Their key features include concealed transmission, high security, native broadband signals. Many studies have recently been published devoted to this technology. However, the practical implementations chaos-based rare due multiple shortcomings: hardware requirements, complex signal processing algorith...