| DS-UWB系统中一种稳定快速同步算法 |
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| 引用本文： | 王洪江;韦岗;刘桂开;冯义志;章秀银.DS-UWB系统中一种稳定快速同步算法[J].华南理工大学学报(自然科学版),2009,37(1). |
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| 作者姓名： | 王洪江;韦岗;刘桂开;冯义志;章秀银 |
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| 作者单位： | 华南理工大学电信学院 |
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| 摘 要： | 本文分析了超宽带通信系统中同步算法的特点及其重要性，提出了一种快速捕获最大能量值路径信号的同步算法，利用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路径信号来实现稳定的定时同步。文中推导了平均捕获时间的表达式，并进行了仿真实验。结果表明，与已有的各种快速算法相比，本文推荐的算法具有更快速、更稳定的同步性能。
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| 关 键 词： | 直扩超宽带系统 多假设定时同步 多径捕获 平均捕获时间 |
| 收稿时间： | 2008-2-29 |
| 修稿时间： | 2008-7-30 |
A Stable Rapid Synchronization Acquisition Method in DS-UWB Systems |
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| WANG Hong-Jiang.A Stable Rapid Synchronization Acquisition Method in DS-UWB Systems[J].Journal of South China University of Technology(Natural Science Edition),2009,37(1). |
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| Authors: | WANG Hong-Jiang |
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| Abstract: | Synchronization has played a significant role in DS-UWB communication systems. A stable rapid synchronization algorithm is proposed in the paper. The method can take full use of the characteristics of multi-hypothesis rapid synchronization algorithms and cluster-ray distribution rule of indoor propagation environment. In the paper, the formula of mean acquirition time of the proposed algorithm is deduced. Simulation results show that the proposed method can achieve more rapid and stable performance comparing with the existing synchronization algorithms. |
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| Keywords: | direct-spread ultra-wideband systems multi-hypothesis timing synchronization multipath acquisition mean acquisition time |
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