Hyperchaos And Its Application Of Secure Communication

The most important common characteristic of hyperchaotic and chaotic system is that theirtrack on initial condition with high sensitivity, but they are different, the chaos is only onepositive Lyapunov index, and system of hyperchaos at least two positive Lyapunov index, sohyperchaos than chaos is more seemingly random, oscillation is more complex. Chaotic andhyperchaotic system both can be used to secure communication, but hyperchaotic system thanchaos system is more difficult to decipher, so hyperchaos is more applicable to secretcommunication, its prospect is more attractive.The main work is as follows:The first part: the analysis of the several common chaotic synchronization problem.The second part: the analysis of the hyperchaos and chaos of the same and different places,and several common hyperchaos system are analyzed, and a detailed study of a new hyperchaoticsystem. And with RÇ’ssler hyperchaos system as an example, the synchronization of hyperchaossystem is discussed.The third part: for hyperchaos and its in secure communication has carried on research inthe application, and analyzes some common secure communication scheme, and make use ofhyperchaos system respectively on text, images, voice using matlab software to securecommunication simulation experiment.