一种低复杂度的基站信道处理器实现方法  

A Method of Implementing a Base-Stations Channelizer with Low Complexity

作　　者：张玉良[1] 吴伟陵[1] 田宝玉[1] 

机构地区：[1]北京邮电大学181信箱,北京100876

出　　处：《电子学报》2003年第7期1101-1103,共3页Acta Electronica Sinica

基　　金：国家 8 63项目 (No 2 0 0 1AA1 2 30 1 6)

摘　　要：本文提出了一种降低基站信道处理器计算复杂度的方法 .通过利用插值二阶多项式滤波器对IDFT滤波器组进行整形处理 ,IDFT滤波器组可以直接用作基站信道处理器 .实现此信道处理器的复杂度更低 ,因此适合在以软件无线电技术实现的基站中采用 .理论分析和仿真结果表明 ,在保持系统性能基本不变的条件下 ,该方法在实现信道滤波器方面比K .C .Zangi等[1] 提出的开放滤波器组 (OFB)信道处理器提高效率 17% .A method of reducing the computation complexity of a base-stations channelizer is presented in this paper.Through using a interpolated second-order polynomials(ISOP)filter to shape the Inverse Discrete Fourier Transform(IDFT) filter bank,the IDFT filter bank can be used as a base stations channelizer directly.The complexity of implementing this channelizer is lower,so it is suitable to be used in base stations implemented with software radio technique.Theoretical analysis and simulation result show that with the system performance remains almost fixed this method is 17% more efficient than the Open-Filter-Bank(OFB) channelizer proposed by K.C.Zangi in implementing the channel filter.

关 键 词：软件无线电 采样率变换 IDFT滤波器组 插值二阶多项式 

分 类 号：TN914.3[电子电信—通信与信息系统]