软件无线电信道化发射机及其FPGA实现  

A Channelized Transmitter Based on Software Radio and Its FPGA Implementation

作　　者：李倩[1] 刘海[1] 田红心[1] 易克初[1] 

机构地区：[1]西安电子科技大学综合业务网国家重点实验室,陕西省西安市710071

出　　处：《电子工程师》2005年第10期20-23,共4页Electronic Engineer

摘　　要：首先建立了信道化软件无线电发射机数学模型,并对该模型进行了算法优化,在对现行的硬件实现方案比较分析后,提出了用FPGA(现场可编程门阵列)实现该发射机结构的简单有效方法,用A ltera公司的仿真软件QUARTUSⅡ4.0和IP Core对其实现进行了仿真,比较发现该仿真结果与MATLAB给出的理论仿真结果一致。这种信道化发射机能同时发射整个处理带宽内所有信道上的信号,具有很高的运算效率,且结构简单,可行性强。This paper firstly introduces and optimizes a mathematical model of channelized transmitter based on the theory of software radio, then represents its FPGA implementation by comparison and analysis with existing methods, and finally simulates the whole process using QUARTUS II4.0 and IP Core as well as giving the theoretical result with MATLAB. This transmitter can simultaneously emit all signals in the whole bandwidth, having high operating efficiency, simple structure and strong feasibility.

关 键 词：软件无线电 信道化发射机 IFFT NCO FPGA 

分 类 号：TN92[电子电信—通信与信息系统]