一种简单的多用途数字信道化结构  

A Simple Multifunctional Digital Channelized Structure

作　　者：黄善勇[1] 丁丽[1] 张文超[1] 

机构地区：[1]电子科技大学电子工程学院,四川成都611731

出　　处：《无线电工程》2011年第7期55-57,共3页Radio Engineering

摘　　要：基于带通滤波器组的均匀数字信道化结构原型,根据软件无线电的模块化设计思想,提出了一种易于硬件实现的简单多功能数字信道化结构。能够实现2种抽取倍数:K=M和K=2M(K为信道数,M为抽取倍数)和2种滤波器组排列方式:偶型和奇型,两两组合形成的4种信道化结构。该结构针对不同信道化结构的要求,通过灵活配置模块,易于可编程门阵列(Field-Programmable Gate Arracy,FPGA)硬件实现。In this paper,an approach is presented to realizing a simple,multifunctional digital channelized structure which is easily implemented in hardware according to the concept of modularity of software radios.The proposed architecture based on the uniform digital channelized structure of band-pass filter bank provides four kinds of channel structures which are formed by different combinations of the decimation factor M and the arrangement of filter bank.In the proposed implementation of the filter bank,the number of filters K is related to M by K=M or K=2M,and simultaneously the arrangement of filter bank can be selected to be even or odd.Through flexible module configuration,this architecture is simply achieved in FPGA hardware.

关 键 词：数字信道化 滤波器组 抽取倍数 

分 类 号：TN82[电子电信—信息与通信工程] TN911