直接中频采样的软件无线通信系统实现研究  

The Realization of Direct Sub-sampling Software Radio System

作　　者：李庆[1] 龚建[1] 江汉红[2] 

机构地区：[1]武汉理工大学信息工程学院,武汉430070 [2]海军工程大学电气工程系,武汉430033

出　　处：《武汉理工大学学报》2004年第6期63-65,共3页Journal of Wuhan University of Technology

摘　　要：软件无线电技术是未来通信发展的关键技术。直接中频采样软件无线通信系统是一种现阶段切实可行的软件无线电实现方案 ,解决了现阶段存在的技术和器件上的不足。对理想软件无线电的概念和结构进行了分析 ,分别分析了直接中频采样软件无线通信系统的发射机和接收机的硬件平台的原理、结构 ,以及实现该平台的硬件的性能。该系统具有很宽的中频处理带宽以及很强的处理速度 ,易于升级和改进 ,可应用于现阶段大部分的通信系统 ,是一个具有很高的灵活性、开放性和通用性的系统。The software radio technology is the key technology to the development of future communication.Direct sub-sampling software radio is a feasible scheme nowadays to realize the software radio in radio communication system,which solves the problem of insufficient technology and apparatus.This paper firstly analyzes the concept and the structure of software radio,and consequently analyzes,direct sub-sampling of software radio communication,the principle and structure of the transmitter and receiver's hardware platform as well as the hardware properties that realizes the platform.This system contains the wide sub-sampling processing bandwidth and rapid processing speed so as to make the advance and innovation much easier.It can be also utilized widely in communication system nowadays because of its flexibility,openness and convention.

关 键 词：软件无线电 中频采样 DSP 数字上/下变频 

分 类 号：TN92[电子电信—通信与信息系统]