具有时变信道的线性逆系统混沌通讯

A Linear Inverse System Approach for Chaotic Communication with Time-varying Channels

用线性逆系统治（LinearInverseSystemApproach）实现混沌信号掩盖是一种不需要同步的混沌通讯方法。本文提出当信道增益为时变函数时，利用自适应控制器来补偿信道增益的变化，以便在接收端能准确地恢复出信息信号。实例分析和计算机模拟结果表明所恢复出的信号与原信号的均方误差小于4．28×10－6，说明该方法是可行的。

Chaos synchronization is not required in chaotic signal masking scheme involving linear inverse system approach. In order to recover the message carrying signal at the receiving end, we use adaptive controller to compensate the variation of channel gain when the channel is time-varying. Computer simulation results show that the mean-square error of recovered signal and original signal is less than 4.28×10-6.