| 摘要: |
| 提出了一种用于干扰数字通信系统的非对称不变分布的混沌干扰样式。基于混沌映射
产生均匀分布的混沌序列，经过相应非线性变换，得到了服从非对称不变分布的混沌干扰信
号
。与现有干扰信号产生方法相比，该方法易于模块化实现，可控性和可再生性好。理论分析
和仿真结果表明，相比于高斯分布干扰，满足Rayleigh分布的混沌干扰对QPSK和16QAM系统
具有更好的干扰效果。 |
| 关键词: 数字通信系统 混沌映射 通信对抗 干扰 非对称不变分布 |
| DOI： |
|
| 基金项目: |
|
| An Asymmetrical Invariant Distributed Chaotic Jamming Source Design and Jamming Effect Analysis |
| QIAN Feng,WANG Ke-ren,JIN Hu,FENG Hui |
| (Electronic Engineering Institute,Hefei 230037,China) |
| Abstract: |
| An asymmetrical invariant distributed chaotic jamming mode is proposed
for digital communication systems in this paper. Chaotic jamming signals with as
ymmetrical invariant distribution can be generated by applying certain nonlinear
transformation to uniformly distributed chaotic time series generated based on
chaotic maps. Compared with the existing jamming signal generators, the proposed
chaos-based jamming generator can be easily implemented and controlled by simpl
e structures, and can well reproduce the jamming signals in demand. Theoretical
analy
sis and simulation results show that, the proposed chaotic jamming with Rayleigh
distribution can jam QPSK and 16QAM systems more effectively compared with the
Ga
ussian distributed jamming. |
| Key words: digital communication system chaotic map communication countermeasure jamming asymmetrical invariant distr
ibution |
《电讯技术》编辑部 