| 基于空间分集的TH-UWB系统性能分析 |
| |
| 引用本文： | 杨银霞,颜 彪. 基于空间分集的TH-UWB系统性能分析[J]. 太赫兹科学与电子信息学报, 2012, 10(1): 27-31 |
| |
| 作者姓名： | 杨银霞 颜 彪 |
| |
| 作者单位： | 扬州大学信息工程学院,江苏扬州,225009 |
| |
| 摘 要： | 为了提高UWB系统在低信噪比下的性能,利用IEEE 802.15.3a工作组建议的标准UWB室内信道模型,采用多个接收天线分析了二进制TH-PPM超宽带系统性能的改善。在理想功率控制下,分别采用不同数目的接收天线和不同SRake接收机选择路径数,对2PPM-TH-UWB系统性能进行了分析和仿真。仿真结果表明,随着天线数和选择路径数的增加,系统性能均明显提高,并且空间分集比路径分集对系统性能有更好的改善。
|
| 关 键 词： | 空间分集 多径信道 Rake接收机 TH-PPMUWB系统 |
| 收稿时间： | 2011-04-06 |
| 修稿时间： | 2011-06-25 |
Performance analysis of the TH-UWB system based on spatial diversity |
| |
| YANG Yin-xia and YAN biao. Performance analysis of the TH-UWB system based on spatial diversity[J]. Journal of Terahertz Science and Electronic Information Technology, 2012, 10(1): 27-31 |
| |
| Authors: | YANG Yin-xia and YAN biao |
| |
| Affiliation: | (School of Information Engineering,Yangzhou University,Yangzhou Jiangsu 225009,China) |
| |
| Abstract: | In order to improve the performance of the Ultra-Wideband(UWB) under the situation of low signal and noise ratio,by using the UWB indoor channel model proposed by IEEE 802.15.3a study group,the performance improvement of the binary pulse position modulation Time Hopping Ultra-Wideband(2PPM-TH UWB) systems is analyzed in the case of employing multiple receive antennas.Under ideal power control,the diversity performance of 2PPM-TH-UWB systems is evaluated for different numbers of antenna elements and selected multipaths.The simulation results indicate that the system property becomes better as the number of antenna elements and Rake fingers increases,and the effects of the spatial diversity upon improving system performance are better than that of the temporal diversity. |
| |
| Keywords: | spatial diversity multipath channel scenarios Rake receiver TH-PPM Ultrawide Band |
| 本文献已被 CNKI 维普 万方数据 等数据库收录！ |
| 点击此处可从《太赫兹科学与电子信息学报》浏览原始摘要信息 |
|
点击此处可从《太赫兹科学与电子信息学报》下载免费的PDF全文 |
