| 基于多混沌载波的超宽带系统 |
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| 引用本文： | 李辉,宋耀良,杨余旺.基于多混沌载波的超宽带系统[J].河南师范大学学报(自然科学版),2008,36(4). |
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| 作者姓名： | 李辉 宋耀良 杨余旺 |
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| 作者单位： | 1. 南京理工大学,电子工程与光电技术学院,南京,210094;河南理工大学,电气工程与自动化学院,河南,焦作,454010
2. 南京理工大学,电子工程与光电技术学院,南京,210094 |
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| 基金项目： | 国家教委留学回国人员基金资助项目
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国防科工委基础研究项目 |
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| 摘 要： | 利用驱动响应的思想,设计了三级级联Colpitts振荡超宽带混沌信号产生电路.该电路结构简单,经仿真电路产生的混沌信号频谱分量丰富,带宽符合FCC的超宽带信号的定义.使用该电路可以构造新颖的多混沌载波超宽带系统,给出了发射机和接收机的结构,并对不同通信速率下的系统误码率进行了仿真,结果表明该系统可以根据工作环境,灵活设定工作频段,在高通信速率下具有较低的误码性能,并且具备高保密性和低截获率等优点.
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| 关 键 词： | 超宽带 混沌 Colpitts振荡电路 |
An Ultra wide Band System Based on Chaotic Multicarrier |
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| LI Hui,SONG Yao-liang,YANG Yu-wang.An Ultra wide Band System Based on Chaotic Multicarrier[J].Journal of Henan Normal University(Natural Science),2008,36(4). |
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| Authors: | LI Hui SONG Yao-liang YANG Yu-wang |
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| Abstract: | By driving-responding idea,an UWB chaotic signal generation circuit using three Colpitts circuits in series has been designed.It has simple structure.The simulations show that the generated chaotic signal has abundant frequency components and bandwidth is in accord with FCC's UWB signal definition.Utilizing the circuit,a new ultra-wide band system based on chaotic multicarrier is put forward.Giving the frames of transmitter and receiver,biterror rate(BER) at vary communication speeds is simulated.The results show that this system can set up working frequency flexibly according to its environment and has low probability of detection,high security and low BER at high-speed. |
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| Keywords: | UWB chaos Colpitts circuit |
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