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| 基于差分空时调制的混沌慢跳频系统 | |
| 引用本文： | 邓洪敏,李涛,王琼华,李鸿斌.基于差分空时调制的混沌慢跳频系统[J].电讯技术,2008,48(8). |
| 作者姓名： | 邓洪敏 李涛 王琼华 李鸿斌 |
| 作者单位： | 1. 四川大学,电子信息学院,成都,610065 2. 四川大学,计算机学院,成都,610065 3. 斯蒂文斯理工学院,电气和计算机工程系,Hoboken NJ,07030 |
| 基金项目： | 国家自然科学基金，军工配套项目，中国博士后科学基金 |
| 摘 要： | 提出一种慢跳频系统中基于差分空时调制的混沌保密通信方法。此方案集成了差分空时编码和混沌跳频扩频技术的优点。一方面,在跳频系统中,使用混沌序列代替伪随机(PN)码,增强了抗截获和抗预测的性能;另一方面,通过差分空时调制产生分集增益,降低了多径衰落效应的影响。仿真结果证实了此方案的有效性。 |
| 关 键 词： | 保密通信 跳频通信 差分空时调制 混沌 |
Chaotic Slow Frequency Hopping System Based on Differential Space Time Modulation |
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| DENG Hong-min,LI Tao,WANG Qiong-hu,LI Hong-bin.Chaotic Slow Frequency Hopping System Based on Differential Space Time Modulation[J].Telecommunication Engineering,2008,48(8). | |
| Authors: | DENG Hong-min LI Tao WANG Qiong-hu LI Hong-bin |
| Abstract: | A novel scheme of differential space time modulation for chaotic slow frequency hopping (FH) system is proposed. This scheme integrates the strength of differential space time coding and chaotic FH spread spectrum technology. It is highly immune to interception and prediction by generating chaotic sequence as pseudo-noise (PN) code in a frequency hopping system. Meanwhile, it can mitigate the multipath fading effects through obtaining the diversity gain. Simulation results of the bit error rate (BER) demonstrate the effectiveness of this method. |
| Keywords: | secure communication frequency hopping communication differential space time modulation chaos |
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