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通过对参数不匹配、结构不同等情况下Chen氏超混沌系统与Lü氏超混沌系统的异结构同步问题,提出了一种基于自适应控制的超混沌系统同步改进方法;并用双通道实现超混沌同步保密通信:一个通道传送超混沌系统的输出信号实现高精度同步,另一个通道传送用超混沌信号调制的信息信号。该方案利用超混沌信号进行数字信号保密传输,保密性更强;并且仅传输两路超混沌信号即可实现混沌同步和信号调制解调,信道利用率高;同时,自适应控制器设计简单,具有很强的工程应用前景。
Aiming at the heterogeneous synchronization between Chen’s hyperchaotic system and Lü’s hyperchaotic system under the conditions of mismatch of parameters and structure, a hyperchaotic synchronization method based on adaptive control is proposed. Hyperchaos Synchronized Secure Communication: One channel transmits the output signal of the hyperchaotic system for high-precision synchronization, and the other channel transmits the information signal modulated by the hyperchaotic signal. The scheme uses the hyperchaotic signal to transmit the digital signal confidentially and has more confidentiality. And only chaos synchronization and signal modulation and demodulation can be realized by transmitting only two hyperchaotic signals, and the channel utilization rate is high. Meanwhile, the design of the adaptive controller is simple, Has a strong engineering application prospects.