11 research outputs found
Influence d'une numérisation de signal sur la synchronisation dans une transmission de données sécurisées par un chaos analogique
No full textInfluence of digitization on the master–slave synchronization in chaos–encrypted transmission
No full textInfluence de la numérisation sur la synchronisation de données dans un système de transmission sécurisé par chaos
No full textHigh temperature low cycle fatigue of spheroidal graphite cast iron
No full textInternational audienc
Influence of digitisation on master–slave synchronisation in chaos-encrypted data transmission
No full textInternational audienceWe describe the impact of digitization on chaos synchronisation and message decoding in a chaotic cryptosystem. We determine numerically and experimentally the sampling rates and resolutions that lead to a good decoding of the message. The results are interpreted in light of Shannon's sampling theory
Chaotic oscillations of the optical phase for multigigahertz-bandwidth secure communications
No full textThis paper reports a novel optoelectronic nonlinear oscillator, which produces a chaotically phase-modulated light beam over a bandwidth greater than 5 GHz. The setup is intended for high-speed chaos-based secure communications. The nonlinear process is performed by the transient response of a fiber interferometer. The flexibility in the definition of such an all-optical nonlinearity features a potentially high-dimensional key space of the encryption process. Modeling, simulations, and experimental results of the dynamical behaviors are reported
