Journal of South China University of Technology (Natural Science Edition) ›› 2009, Vol. 37 ›› Issue (1): 1-5.

• Electronics, Communication & Automation Technology •     Next Articles

A Stable Rapid Synchronization Algorithm for Direct-Spread Ultra-Wideband Systems

Wang Hong-jiang1  Wei Gang1  Liu Gui-kai1  Feng Yi-zhi1  Liu Lei-an2   

  1. 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, Guangdong, China
  • Received:2008-02-29 Revised:2008-07-30 Online:2009-01-25 Published:2009-01-25
  • Contact: 王洪江（1977-），男，博士后，主要从事超宽带通信系统关键技术研究． E-mail:eehjwang@hotmail．com
  • About author:王洪江（1977-），男，博士后，主要从事超宽带通信系统关键技术研究．
  • Supported by:

    国家“863”计划项目（2007AA01Z210,2007AA01Z2b3）;中国博士后科学基金资助项目（20080430831）

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Abstract:

In order to improve the reliability and speed of the synchronization algorithms for a direct-spread ultrawideband 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 muhi-path propagation and multi-hypothesis rapid synchronization algorithms are considered, and the path signal with the maximum energy is rapidly acquired for the stable timing synchronization. Simulated results indicate that the proposed algorithm is more rapid and stable than the existing synchronization algorithms.

Key words: direct-spread uhra-wideband system, multi-path propagation, multi-hypothesis timing synchronization algorithm, mean acquisition time