基于Wien桥的混沌保密通信系统设计

Design of Chaotic Secure Communication System Based on Wien Bridge

在典型的Wien桥振荡电路的基础上设计了一种混沌电路,该电路只有两个集成运放,电路简单,稳定性好。以此电路设计的保密通信系统实现了发送端与接收端之间的混沌系统的同步,最后在接收端解调出调制信号,该系统有恢复精度高、保密度高、破译难度大、执行速度快的特点,使保密通信的安全性得到提高。

A chaotic circuit is designed on the basis of typical Wien bridge oscillating circuit, whereto me circuit only has two integrated operational amplifiers. The circuit is simple and stable. The secure communication system designed with the circuit realizes synchronization of chaotic system between a transmitting end and a receiving end, and finally modulation signal is demodulated at the receiving end. The system is featured with high restoration precision, security, decipher difficulty and execution speed;moreover, the safety of the secure communication is im- proved.