变增益参数辨识及其在混沌保密通信中的应用

讨论变增益参数辨识技术在混沌保密通信中的应用。在基于参数调制策略的混沌扩频通信过程中 ,利用参数辨识进行信息解调。同时利用系统输入和可测输出 ,给出一种可行的参数调整策略 ,以改善对时变参数的跟踪质量并对参数调整的可行性进了定性讨论。数值仿真表明 ,这种变增益的信息解调策略比LMS和ILMS效果更好

Variable Gain Parameter Estimation With Application to Chaotic Secure Communication

This paper studies the problem of variable gain parameter identification with application to chaotic spread spectrum communication, where information is modulated by bifurcation parameter of transmitter chaotic system and demodulated in receiver based on parameter identification. In order to improve the performance of demodulator in chaotic communication, a feasible gain-adjusting technique is proposed based on the input and the measurable output of the system. Numerical simulations are carried out to show the performance of this proposed way with a good result.