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基于解相关算法的直扩超宽带系统路径间干扰抑制 被引量：6

Interpath Interference Suppression Scheme for DS-UWB Communication Systems Based on Decorrelating Algorithm
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摘要 通过研究存在路径间干扰(IPI)时直扩超宽带(DS-UWB)系统的信号模型,提出了在一定条件下DS-UWB部分合并RAKE接收机(PRAKE)与异步CDMA系统有着相似的信号模型。基于这一相似性,将用于多用户检测的解相关算法用于PRAKE中以抑制IPI。使用滑窗法实现了解相关器并进行了计算机仿真,仿真结果表明该方法能显著改善PRAKE接收机在CM1信道中的性能,在衰落更为严重的CM3信道中系统性能也有少许改善。 Similarities between the signal model of asynchronous CDMA system and the signal model of DS-UWB partial combining RAKE receiver (PRAKE) are found by studying DS-UWB system with interpath interference (IPI).Based on these similarities decorrelating algorithm,which is commonly used in multi-user detection,is introduced to PRAKE to combat IPI.Sliding window approach is utilized for implementation of the decorrelator and computer simulations verify that the proposed decorrelating scheme can significantly impro...
作者 杨莘元 殷潜 毕晓艳 吕威
机构地区 哈尔滨工程大学信息与通信工程学院
出处 《宇航学报》 EI CAS CSCD 北大核心 2007年第5期1278-1282,共5页 Journal of Astronautics
关键词 直接序列超宽带(DS-UWB) 路径间干扰 解相关算法 部分RAKE接收机 DS-UWB Interpath interference Decorrelating algorithm Partial combining RAKE receiver
分类号 TN914.42 [电子电信—通信与信息系统]
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参考文献10

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同被引文献47

  • 1刘庆云,李志舜,李海英,梁红.多分量多项式相位信号的参量估计[J].电子学报,2004,32(12):2031-2034. 被引量：17
  • 2郭安波,陈惠民.平面单极天线的设计[J].无线电工程,2005,35(2):26-28. 被引量：5
  • 3刘焱,唐斌,杜东平.基于FrFT的欠采样LFM信号分离与参数估计[J].电子信息对抗技术,2006,21(5):3-6. 被引量：6
  • 4赵丹,于全,王建新.超宽带无线通信的一种快速同步捕获算法[J].系统工程与电子技术,2006,28(11):1648-1651. 被引量：3
  • 5Powell J, Chandrakasan A. Differential and single ended elliptical antennas for 3. 1 - 10.6 GHz ultra wideband communication[J]. Antennas and Propagation Society International Symposium ,2004,6 ( 3 ) :2935 - 2938.
  • 6Sehantz H G. A brief history of UWB antennas [ J ]. Aerospace and Electronic Systems Magazine ,2004,19 (4) :22 -26.
  • 7Yazdandoost D, Kohno K Y. Ultra wideband antenna[ J ]. Communications Magazine ,2004,42 (6) :S29 -S32.
  • 8Eldek A A. Ultra wideband double rhombus antenna with stable radiation pattern for phased array application [ J ]. IEEE Trans Antennas Propagat ,2007,55 ( 1 ) :84 - 91.
  • 9Sheng J, Yang X X, Sun J T, et al. Double-printed circular disc antenna having a frequency band notch function [ J ]. Microwave and Optical Technology Letters ,2007,49 (11 ) :2675 -2677.
  • 10Ray K P, Ranga Y. Uhra-wideband printed elliptical monopole antennas [J]. Antennas and Propagation, IEEE Transactions ,2007.55 (4) : 1189 - 1192.

引证文献6

二级引证文献13

宇航学报
2007年 第5期

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