| 摘要: |
| 为了增强跳频通信系统的保密性和安全性，基于Logistic映射和Hybird映射方法的组
合，采用相邻组合的方法来产生混沌跳频序列。仿真检测了包括初始敏感性、平衡性、汉明
相关性在内的系统性能，结果表明：新跳频序列能够很好地克服有限精度效应,初始敏感性
高，汉明相关性好，并具有较高的平衡性能。 |
| 关键词: 跳频通信 混沌跳频序列 有限精度 组合图案 汉明相关 |
| DOI： |
|
| 基金项目:国防科技重点实验室基金资助项目(9140C0201010902) |
|
| A Novel Method for Designing Chaotic Frequency Hopping Sequence |
| CHEN Yong-jun,WU Jie,XU Hua,LONG Min,BAO Yi-feng |
| (The Telecommunication Engineering Institute,Air Force Engineering University
, Xi′an 710077, China;;Element 67,Unit 93437 of PLA, Yixian 074212, China) |
| Abstract: |
| Based on the combination of Logistic map and Hybird map, a method with combined
map to generate chaotic frequency hopping(FH) sequences is proposed i
n order to enhance the properties of secrecy and security in traditional FH sys
tems.The properties of new sequence are simulated including initial sensitivity,
balance and Hamming correlation. Simulation results show that the new chaotic F
H sequence can easily overcome the problem of finite precision effect, besides,
it has higher initial sensitivity, better Hamming correlation property and highe
r balance property. |
| Key words: FH communication chaotic FH sequence finite precision combined map Hamming co
rrelation |
