| 一种基于扩时的直接序列扩频系统抗脉冲干扰方法 |
| |
| 引用本文： | 陈洪,廖洁,张尔扬.一种基于扩时的直接序列扩频系统抗脉冲干扰方法[J].解放军理工大学学报,2006,7(3):220-224. |
| |
| 作者姓名： | 陈洪 廖洁 张尔扬 |
| |
| 作者单位： | [1]国防科技大学电子科学与工程学院,湖南长沙410073 [2]湖南理工学院,湖南岳阳414006 |
| |
| 摘 要： | 为了提高直接序列扩频系统在脉冲干扰条件下的误码性能,提出了一种基于扩时技术的抗脉冲干扰新方法.对基于扩时技术的直接序列扩频（DSSS）系统模型及其脉冲抑制能力进行了分析,并提出了一种抗脉冲性能优越的扩时码方案.仿真结果表明,在误码率要求为10^-6时,该方法和理想交织加纠错的方法相比,抗脉冲干扰能力提高了4 dB,并且不会降低信息传输速率,硬件实现容易.
|
| 关 键 词： | 扩时 直接序列扩频 脉冲干扰 前向纠错 交织 |
| 文章编号： | 1009-3443（2006）03-0220-05 |
| 收稿时间： | 2005-05-13 |
| 修稿时间： | 2005年5月13日 |
Method to suppress pulsed noise interference of DSSS
based on time spreading |
| |
| CHEN Hong,LIAO Jie and ZHANG Er-yang.Method to suppress pulsed noise interference of DSSS
based on time spreading[J].Journal of PLA University of Science and Technology(Natural Science Edition),2006,7(3):220-224. |
| |
| Authors: | CHEN Hong LIAO Jie and ZHANG Er-yang |
| |
| Institution: | Electronic Engineering Institute,NUDT,Changsha 410073,China;Hunan Institute of Science and Technology,Yueyang 414006,China;Electronic Engineering Institute,NUDT,Changsha 410073,China |
| |
| Abstract: | A novel method based on time spreading technology was presented to improve the BER performance of DSSS(direct sequence spreading systems) in severe pulsed noise interference.The system model and the performance of the pulsed noise interference suppressing were analysed and a kind of time spreading code with ideal performance in pulsed noise suppressing also put forward.The simulation shows that the method presented in this paper can improve the pulsed noise suppressing performance up to 4 dB compared with the method based on combined coding and interleaving.The method which is easy to implement with hardware will not reduce the data rate and has strong practicality in pulsed noise suppressing. |
| |
| Keywords: | spreading-time DSSS(direct sequence spreading systems) pulsed noise interference FEC(forward error correction) interleaving |
| 本文献已被 CNKI 维普 万方数据 等数据库收录！ |
| 点击此处可从《解放军理工大学学报》浏览原始摘要信息 |
| 点击此处可从《解放军理工大学学报》下载免费的PDF全文 |
