一种新型钟控混沌跳频序列构造方法  

Design of a clock controlled FH sequences based on chaos

作　　者：蔡颖[1] 张家树[1] 

机构地区：[1]西南交通大学信号与信息处理省重点实验室,四川成都610031

出　　处：《电波科学学报》2004年第2期209-214,共6页Chinese Journal of Radio Science

基　　金：四川省杰出青年学科带头人培养基金资助项目 (0 3ZQ0 2 6 0 33)

摘　　要：针对传统单一的混沌跳频序列的汉明相关性差、极易被攻击的缺点 ,将传统密码学中经典的时钟控制方法引入到跳频当中 ,结合混沌动力学提出了一种新型的钟控混沌跳频序列产生方法。理论研究与仿真结果证明这种方法极大地增加了系统抗干扰 ,抗截获的能力 ,同时对序列的周期性 ,相关性 ,线性复杂度和相空间分布等性能也有较大地提高 ,且该结构便于硬件实现 ,具有广泛的应用前景。The Hamming correlation and anti-prediction of traditional chaotic sequence can not be adapted to frequency hopping(FH) communication. A clock controlled chaotic FH sequences generator based on chaos and traditional clock controlled method is proposed to improved Hamming correlation and anti-prediction in this paper. The simulation results show that the proposed clock controlled chaotic FH sequences generator has an ideal FH property. Moreover, the structure can be easily implemented using digital circuit.

关 键 词：钟控混沌跳频序列 相空间 汉明相关性 跳频通信 仿真 跳频间隔 

分 类 号：TN914.41[电子电信—通信与信息系统]