应用Simulink动态仿真方法研究混沌保密通信

Study of Chaos Security Communication by Using Simulink Dynamic Simulation Method

计算机动态仿真是混沌应用研究的重要方法。该文介绍了Matlab环境下S imu link的可视化建模与动态仿真步骤;应用S imu link动态仿真方法,分别对统一混沌系统的动力学特性、统一混沌系统的驱动-响应同步控制方法和基于该同步方法的混沌掩盖保密通信原理进行了仿真研究。研究表明,S imu link动态仿真方法具有模型搭建灵活、结果输出直观和系统性能影响因素可控的特点。最后,对动态仿真过程中出现的热点问题,如仿真结果分析、提高仿真速度等进行了讨论。

Computer simulation is an important method in the field of chaotic application study. This paper presents a visual modeling and dynamic simulation approach based on Simulink platform. Using Simulink dynamic simulation method, the performances of unified chaotic system, the way of Drive - Response synchronization control and the principle of chaos masking security communication are studied respectively. Studies show that this simulation method has many merits, such as setting up module convenient, output results visual and affecting factor to system performances controllable. Finally, the process of dynamic simulation and some critical issues are discussed, such as how to improve the simulation speed, the analysis of simulation results and so on.