应用科学学报 ›› 2005, Vol. 23 ›› Issue (1): 56-60.

• 论文 • 上一篇    下一篇

基于多普勒频偏估计的自适应WMSA信道估计

华惊宇, 盛彬, 孟庆民, 尤肖虎   

  1. 东南大学移动通信国家重点实验室, 江苏南京 210096
  • 收稿日期:2003-08-30 修回日期:2003-10-27 出版日期:2005-01-31 发布日期:2005-01-31
  • 作者简介:华惊宇(1978-),男,上海人,博士生,E-mail:eehjy@21cn.com;尤肖虎(1962-),男,江苏苏州人,教授,博导.

The Adaptive WMSA Channel Estimation Based on Doppler Shift Estimation

HUA Jing-yu, SHENG Bin, MENG Qing-min, YOU Xiao-hu   

  1. NCRL, Southeast University, Nanjing 210096, China
  • Received:2003-08-30 Revised:2003-10-27 Online:2005-01-31 Published:2005-01-31

摘要: 经典的信道估计为线性插值,而信道的多普勒频偏体现了信道参数变化的快慢,因此信道插值的参与点数可以根据多普勒频偏进行动态调整.该文据此提出了基于多普勒频偏估计的自适应多时隙加权平均(WMSA)信道估计算法,有效提高了信道估计精度.

关键词: 多普勒频偏, 信道估计, 多时隙加权平均

Abstract: The classical channel estimation method is linear interpolation, and the variation rate of the channel corresponds to its maximum Doppler shift.Hence, the interpolation length can be decided by the estimated Doppler shift.An adaptive weighted multi-slot average channel estimation method is thus proposed to improve channel estimation accuracy.

Key words: channel estimation, Doppler-shift, weighted multi-slot average

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