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应用科学学报 ›› 2004, Vol. 22 ›› Issue (1): 50-54.

• 论文 • 上一篇    下一篇

自适应天线阵列在OFDM系统中的应用

颜永庆, 蒋朱成, 赵春明, 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:2002-10-29 修回日期:2003-04-06 出版日期:2004-03-31 发布日期:2004-03-31
  • 作者简介:颜永庆(1965-),男,山东青州人,高级工程师;赵春明(1959-),男,江苏江都人,教授,博导;尤肖虎(1962-),男,江苏苏州人,教授,博导.
  • 基金资助:
    国家杰出青年基金资助项目(69725001)

Application of Adaptive Antenna Array Techniques Used for the OFDM System

YAN Yong-qing, JIANG Zhu-cheng, ZHAO Chun-ming, YOU Xiao-hu   

  1. National Mobile Communications Research Laboratory, Southeast University, Nanjing 210096, China
  • Received:2002-10-29 Revised:2003-04-06 Online:2004-03-31 Published:2004-03-31

PDF

83

被引次数

4

摘要： 在简要介绍OFDM系统的基础上,提出了一种将卡尔曼滤波运用于OFDM系统的自适应天线阵列方法,理论分析并计算机仿真了系统误码率性能.结果表明文中提出的自适应天线阵列在消除OFDM系统同频干扰、提高系统接收性能方面显示出良好的性能.

关键词: 波束成形, 自适应天线阵列, 正交频分复用

Abstract: Orthogonal frequency division multiplexing (OFDM), which has been widely used in the wire and wireless communication systems, is a promising technique in future wireless communications for its good performance in combating multipath fading. Based on the analysis of the basic OFDM system, an adaptive antenna array with Kalman algorithm of updating weights of antenna arrays in the frequency domain is presented in the paper. Theoretical analysis and computer simulation results show that the adaptive antenna array with the proposed algorithm has good performance in suppressing co-channel interference and can improve the receiving performance of the system.

Key words: OFDM, adaptive antenna array, beamforming

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