Experimental realization of binary signals transmission based on synchronized Lorenz circuits

 

C. Posadas-Castillo¹ , C. Cruz-Hernández² & R. Núnez-Pérez²

 

¹ Faculty of Enginnering Mechanic and Electrical (FIME), Nuevo León Autonomous University (UANL), Pedro de Alba s/n Cd. Universitaria San Nicolas de los Garza, Nuevo León, México. cornelio_posadas@hotmail.com

² Electronics and Telecommunications Department, Scientific Research and Advanced Studies Center of Ensenada (CICESE), Km. 107 Carretera Tijuana-Ensenada, Ensenada, B.C., 22860, México. ccruz@cicese.mx

 

Received: May 24^th, 2002.
Accepted: November 18^th, 2002.

 

Abstract

In this paper, an experimental study of practical realization to transmit private binary signals using chaos is presented. In particular, we use a Generalized Hamiltonian systems approach to synchronize two unidirectionally coupled Lorenz circuits with the receiver being given by an observer. Experimental results are in close accordance with the numerical simulations.

Keywords: Synchronization, Chaos, Lorenz system, Passivity based observers, Private communication.

 

Resumen

Este trabajo presenta un estudio experimental relacionado con la comunicación de información privada, empleando caos, con base en la sincronía de dos circuitos de Lorenz por formas hamiltonianas y el diseño de un observador para el receptor. Los resultados experimentales coinciden con las simulaciones numéricas.

 

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Acknowledgment

This work was supported by the CONACYT, Mexico, under Research Grant 31874-A.

 

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