| 一种基于截断混沌序列的多用户UWB系统 |
| |
| 引用本文： | 汪一鸣,朱灿焰,周悦,朱洪波.一种基于截断混沌序列的多用户UWB系统[J].哈尔滨工业大学学报,2009(11):182-185. |
| |
| 作者姓名： | 汪一鸣 朱灿焰 周悦 朱洪波 |
| |
| 作者单位： | 苏州大学电子信息学院;南京邮电大学无线通信与电磁兼容实验室 |
| |
| 基金项目： | 国家自然科学基金资助项目(60432040,60572075) |
| |
| 摘 要： | 研究一种新的基于混沌学的短序列产生方法.在多值量化方法的基础上,提出了中间抽取的截断数字二进制混沌序列的产生方法,该方法不改变混沌映射系统的有限字长误差,同时可以有效产生所需长度的伪随机混沌序列.将该方法产生的截断序列(混沌子集系列)应用于多用户DS-UWB系统,分析了序列的相关性能和系统性能.仿真结果表明,新的短序列产生方法有较好的互相关性,有效提高了多用户UWB系统性能.
|
| 关 键 词： | 直扩超宽带 多用户干扰 伪随机序列 混沌序列 |
A multiuser UWB system based on truncated chaotic sequence |
| |
| WANG Yi-ming,ZHU Can-yan,ZHOU Yue,ZHU Hong-bo.A multiuser UWB system based on truncated chaotic sequence[J].Journal of Harbin Institute of Technology,2009(11):182-185. |
| |
| Authors: | WANG Yi-ming ZHU Can-yan ZHOU Yue ZHU Hong-bo |
| |
| Affiliation: | 1. School of Electronics and Information Eng. Soochow University,Suzhou 215021,China; 2. Nanjing University of Posts and Telecommunications Nanjing 210003,China) |
| |
| Abstract: | A new generation method for short sequence based on chaotic theory is presented,which is drawn out from the middle of the sequence. This method does not change the limit word-length error and is effective to produce chaotic digital sequence with the length needed. The modified truncated sequence (chaotic subset sequence) generated from the method is used in multiuser DS-UWB system and its performance is evaluated. Simulations show that the new short sequence based on chaos improves the performance of DS-UWB system effectively. |
| |
| Keywords: | DS-UWB multiuser interference pseudo-noise (PN) sequence chaotic sequence |
| 本文献已被 CNKI 等数据库收录！ |
