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WCDMA中自适应最大多普勒频移估计方法的研究 被引量：1

A Study on Adaptive Maximal Doppler Frequency Estimation for WCDMA Systems
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摘要 提出了WCDMA系统中一种利用信道估计相位变化的统计信息来估计最大多普勒频移的自适应方法,并在分析相对误差的基础上给出了校正公式.仿真结果表明该方法简便易行,精度高,并且不受功率控制等因素的影响,在3G标准支持的宽广的多普勒频率范围内都能获得良好的估计效果. In this paper, a scheme that adaptively estimates one of the most important channel parameters——maximum Doppler frequency f_D is proposed for WCDMA systems. The scheme uses phase variations of received pilot signals, strongly related with f_D in a fading environment. The simulation results show that the proposed scheme is very simple, showing good performance over wide Doppler frequency range supported by 3G standard.
作者 盛彬 尤肖虎
机构地区 东南大学移动通信国家重点实验室
出处 《应用科学学报》 CAS CSCD 2004年第1期1-5,共5页 Journal of Applied Sciences
基金 江苏东大通信技术有限责任公司(SeuComm)资助项目
关键词 WCDMA 自适应 最大多普勒频移 信道估计 相位变化 宽带码分多址 WCDMA maximum doppler frequency phase variation
分类号 TN929.533 [电子电信—通信与信息系统]
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参考文献7

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同被引文献9

  • 1KAWABATA K, NAKAMURA T, FUKUDA E. Estimating velocity using diversity reception[A]. Proc IEEE VTC[C]. Stockholm,Sweden, 1994. 371-374.
  • 2KAY S M. Fundamentals of Statistical Signal Processing: Estimation Theory[M]. Prentice Hall, 1993.
  • 3奥本海姆AV著 刘树棠译.离散时间信号处理[M].北京:科学出版社,1998.66-68.
  • 4JAKES W C. Microwave Mobile Communications[M]. New York: IEEE Press,1994.
  • 5MONK A M, MILTEIN L B. Open-loop power control error in a land mobile satellite system[J]. IEEE J Sel Areas Comm, 1995,13(2):205-212.
  • 6CAVERS J K. An analysis of pilot symbol assisted modulation for Rayleigh fading channel[J]. IEEE Trans on VT, 1991,40(4):683-693.
  • 7SAMPATH A, HOLTZMAN J. Estimation of maximum Doppler frequency for handoff decisions[A]. Proc IEEE VTC[C]. Secaucus,NJ, USA, 1993. 859-862.
  • 8TEPEDELENLIOGLU C, GIANNAKIS G B. Estimation of Doppler spread and signal strength in mobile communications with application to handoff and adaptive transmission[J], Wirel Commun Mob Comput of Wiley, 2001, 1(2):221-242.
  • 9MAZhangyong YANYongqing ZHAOChunming YOUXiaohu.An Improved Channel Estimation Algorithm Based on Estimating Level Crossing Rate for the CDMA Receiver[J].Chinese Journal of Electronics,2003,12(2):235-238. 被引量：12

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应用科学学报
2004年 第1期

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