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Qne Kind of the Simulation of Chaos Modulating Secrecy Communication Circuit

Author: ZhuXiXia
Tutor: MaYiDe
School: Lanzhou University
Course: Radio Physics
Keywords: Chua’s Circuit Chaotic circuit active inductance Chaotic synchronization Chaos Modulating secrecy communicate circuit simulation
CLC: TN710
Type: Master's thesis
Year: 2009
Downloads: 60
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Abstract


Nowadays, science and technology develop very fast and information security are part of people’s life. However the existing information security methods are still faced with the challenge of using functions and hacker attacks, thus the problem of security also needs to be continuously developed and improved. Noise-like in chaotic systems, extreme sensitivity to initial condition, broadband power spectrum and other features are also applicable to secrecy communication systems. Secrecy communication using chaotic circuit not only avoids the problem of poor robustness of chaos synchronization, but also adds new secrecy ideas, at the same time it has certain of feasibility and thus it has important theoretical and practical significance.Chua’s circuit is one of the few known actual chaotic physical systems by far. Closely around the theme of chaotic communication, and based on modern communication theory and Chua’s circuit theory, this paper studies the feasibility and necessity of active inductance replacing passive inductance, as well as the improved realization of synchronization of Chua’s circuit and other key issues through a large number of simulation experiments. The main contents are as follows: (1) Researching and analyzing the theory and the basic characteristics of chaos, introducing the chaotic synchronization and chaotic secrecy communication theory. (2) Discussing the Chua’s circuit and the circuit model in detail, and researching the chaotic synchronization characteristics of Chua’s circuit, laying the foundation for establishing chaotic secrecy communication system. (3) Exploring deeply the necessity and feasibility of active inductance replacing passive inductance, and applies Chua’s circuit of active inductance into chaos clouding secrecy communication, and shows the simulation results of this circuit for chaos clouding secrecy communication. (4) Doing synchronous simulation experiment and non-synchronous simulation experiment of the improved one-way secrecy communication circuits, verifying the feasibility of this circuit after experiments, and proposing the qualifications of achieving synchronization theoretically.In the accessible literatures, there are many feasibility analyses about active inductance replacing passive inductance, as well as some chaotic secure communication studies based on chaotic Chua’s circuit. The innovation of this paper is the research based on active inductor Chaotic Chua’s circuit, which is a new in the filed.

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CLC: > Industrial Technology > Radio electronics, telecommunications technology > Basic electronic circuits > Electronic circuit
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