期刊文献+
任意字段
题名或关键词
题名
关键词
文摘
作者
第一作者
机构
刊名
分类号
参考文献
作者简介
基金资助
栏目信息

直扩超宽带系统自适应同步方案 被引量：2

Adaptive acquisition scheme for DS-UWB system
下载PDF
导出
摘要 提出了一种新的直扩超宽带系统码片同步方法,通过设计具有重复特性的码来提高观察窗中信号的信噪比,将码片同步后窗口中的信息作为接收端本地信号与接收信号进行匹配接收,提高接收信噪比。PN码捕获门限根据接收信号的功率大小自适应调整。理论分析和仿真结果表明新方案有效降低了捕获时间而且可以获得与理想同步可比拟的误比特率性能。 A novel chip acquisition scheme was proposed for DS-UWB system. A preamble with repetition property was employed to improve the signal to noise ratio in the energy window. Once chip acquisition achieved, the multipath components could be acquired by utilizing the samples in energy window as the local template waveform. The threshold setting was adaptive with the power of the received sig- nal. Analysis and simulation results indicate that the proposed scheme reduce acquisition time significantly and acquire BER performance comparable with perfect synchronization.
作者 王江 毕光国 张在琛
机构地区 东南大学移动通信国家重点实验室
出处 《电波科学学报》 EI CSCD 北大核心 2006年第2期215-219,共5页 Chinese Journal of Radio Science
关键词 超宽带通信 同步 能量窗 自适应门限 ultra-wideband communication, synchronization, energy window, adaptive threshold
分类号 TN914 [电子电信—通信与信息系统]
  • 相关文献

参考文献12

  • 1Time Domain Corporation.PulseON Technology O verview,[EB/OL].http://www.timedomain.com/ Files/ downloads/ techpapers/ PulsONOverview7 _ 01.pdf,July.2001.
  • 2E A Homier,R A Scholtz.Rapid acquisition of ultrawideband signals in the dense multipath channel,UWBST2002[C].Baltimore,USA:IEEE Press,2002,pp.105～109.
  • 3R Blazquez,P Newaskar,A Chandrakasan.Coarse acquisition.for ultra wideband digital receivers,ICASSP ' 03[C].Hong-Kong,China:IEEE Press,2003,Volume 4,pp.137～140.
  • 4黄勇富,毕光国,樊祥宁.脉冲激励的长方形发射天线的分析与波形优化[J].电波科学学报,2003,18(6):615-619. 被引量：3
  • 5L Yang,G B Giannakis.Low-complexity training for rapid timing acquisition in ultra wideband communications,Globecom03[C],San Francisco:IEEE Press,2003.Volume 21,pp.769～773.
  • 6S Gezici,E Fishler,H Kobayashi,etal..A rapid acquisition technique for impulse radio,PACRIM2003[C].Victoria,Canada:IEEE Press,2003.Volume2,pp.627～630.
  • 7L Yang,Z Tian,G B Giannakis.Non-data aided timing acquisition of ultra-wideband transmissions using cyclostationarity,ICASSP03[C].Hong-Kong,Chi-na:IEEE Press,2003,Volume 4,pp.121～124.
  • 8Z Tian,L Yang,and GB Giannakis.Symbol timing estimation in ultra wideband communications,Conference Record of the Thirty-Sixth Asilomar Conference on,2002[C].Pacific Grove,California:IEEE Press,2002,Volume 2,pp.1924～1928.
  • 9J Kusuma,I Maravic,M Vetterli.Sampling with finite rate of innovation:channel and timing estimation for UWB and GPS,ICC 03[C].Anchorage,Alaska:IEEE Press,2003,Volume 5,pp.3540～3544.
  • 10P M a T B M Vetterli.Sampling signals with finite rate of innovation,[J].IEEE Transactions on Signal Processing,2002,50(6):1417～ 1428.

二级参考文献3

共引文献2

同被引文献11

  • 1M Z Win, R A Scholtz. Impulse radio: How it works [J]. IEEE Commun. Lett. , 1998, 2(2) : 36-38.
  • 2M Z Win , R A Scholtz. On the energy capture of ultrawide bandwidth signals in dense multipath environments [J]. IEEE Commun. Lett. , 1998, 2(9): 245- 247.
  • 3Qinghua Li , Leslie A Rusch. Multiuser detection for DS-CDMA UWB in the home environment [J]. IEEE J. SAC, 2002, 20(9):1701-1711.
  • 4L Yang G B Giannakis. Optimal pilot waveform assisted modulation for ultra-wideband communications [J]. IEEE Trans. Wireless Commun. , 2004, 3(4). 1236-1249.
  • 5A A IYAmico, U Mengali. GLRT Receivers for UWB Systems [J]. IEEE Commun. Lett, 2005, 9(6).487- 489.
  • 6S Franz, U Mitra. On optimal data detection for UWB transmitted reference systems, Globecom'03 [C]. San Francisco.. IEEE Press, 2003,2 . 744-748.
  • 7R C Qiu. A study of the Ultra-Wideband wireless propagation channel and optimum UWB receiver design [J]. IEEE JSAC, Special Issue on UWB Radio in Multiple Access Wireless Communications, 2002, 20 (9), 1628-1637.
  • 8Y L Chao, R A Scholtz. Optimal and suboptimal receivers for ultra-wideband transmitted reference systems. Globecom'03[C]. San Francisco: IEEE Press, 2003. 2:759-763.
  • 9J R Forester , M Pendergrass , A F Molisch. A Channel Model for Ultra-wideband Indoor Communication , [ EB/OL]. www. merl. com/ report s/ docs/ Tr20042074. pdf, 2004.
  • 10A M Mathal, S B Provost. Quadratic forms in random variables theory and applications [M]. New York .. M. Dekker ,1992,42-43.

引证文献2

电波科学学报
2006年 第2期

相关作者

内容加载中请稍等...

相关机构

内容加载中请稍等...

相关主题

内容加载中请稍等...

浏览历史

内容加载中请稍等...
;
使用帮助 返回顶部