混沌電子模擬器於加密通訊之應用

Abstract

本篇論文所做的研究主要是希望將混沌系統的行為特性應用在加密通訊 上.我們所選擇的混沌系統是加了驅動力的凡得波振盪子(the driven Van der Pol oscillator).從最基本要件混沌電子模擬器的製作到混沌系統的 同步,以及最後信息訊號的加密及還原,都將在本文中一一建立起架構.而 傳遞信息的實驗結果,將告訴我們此加密通訊系統還原信息的可信度.值得 一提的是,我們在實驗過程中發現了一種簡單的辦法可以達成混沌系統的 同步.此種方法或許可以應用於更多其它的混沌系統. A secure communication system has been constructed on the basis of chaotic synchronization. We utilized our design of the driven Van der Pol simulatorfirst to implement the synchronization of two identical chaotic systems andthen recover at the receiver the message signal encoded at the transmitter.The experimental results of signal recovery fidelity are demonstrated to showhow this communication system performs. One thing worth noting is that in synchronizing chaotic systems, we found a simple method which may be applicableto chaotic systems other than the driven Van der Pol system.