| 一种稳定的直扩超宽带系统快速同步算法 |
| |
| 引用本文： | 王洪江,韦岗,刘桂开,冯义志,刘磊安. 一种稳定的直扩超宽带系统快速同步算法[J]. 华南理工大学学报(自然科学版), 2009, 37(1) |
| |
| 作者姓名： | 王洪江 韦岗 刘桂开 冯义志 刘磊安 |
| |
| 作者单位： | 华南理工大学,电子与信息学院,广州,广东,510640;仲恺农业工程学院,计算机科学与工程学院,广州,广东,510225 |
| |
| 基金项目： | 国家高技术研究发展计划(863计划)，中国博士后科学基金 |
| |
| 摘 要： | 为了提高直扩超宽带通信系统中同步算法的可靠性和快速性,提出了一种稳定的快速捕获最大能量值的路径信号的同步算法,推导了平均捕获时间的表达式.该算法根据室内多径信道的传输特性和多假设快速同步算法的特点,通过快速捕获具有最大能量值的路径信号来实现稳定的定时同步.仿真实验结果表明,与现有的快速算法相比,文中算法具有更快速、更稳定的同步性能.
|
| 关 键 词： | 直扩超宽带系统 多径传输 多假设定时同步算法 平均捕获时间 |
A Stable Rapid Synchronization Algorithm for Direct-Spread Ultra-Wideband Systems |
| |
| Wang Hong-jiang,Wei Gang,Liu Gui-kai,Feng Yi-zhi,Liu Lei-an. A Stable Rapid Synchronization Algorithm for Direct-Spread Ultra-Wideband Systems[J]. Journal of South China University of Technology(Natural Science Edition), 2009, 37(1) |
| |
| Authors: | Wang Hong-jiang Wei Gang Liu Gui-kai Feng Yi-zhi Liu Lei-an |
| |
| Affiliation: | Wang Hong-jiang1 Wei Gang1 Liu Gui-kai1 Feng Yi-zhi1 Liu Lei-an2(1.School of Electronic and Information Engineering,South China University of Technology,Guangzhou 510640,Guangdong,China,2.College of Computer Science and Engineering,Zhongkai University of Agriculture and Engineering,Guangzhou 510225,China) |
| |
| Abstract: | In order to improve the reliability and speed of the synchronization algorithms for a direct-spread ultra-wideband communications system,a stable rapid synchronization algorithm is proposed to acquire the path signal with the maximum energy,with the mean acquisition time being also formulated.In this algorithm,the characteristics of indoor multi-path propagation and multi-hypothesis rapid synchronization algorithms are considered,and the path signal with the maximum energy is rapidly acquired for the stable... |
| |
| Keywords: | direct-spread ultra-wideband system multi-path propagation multi-hypothesis timing synchronization algorithm mean acquisition time |
| 本文献已被 CNKI 维普 万方数据 等数据库收录！ |
|
