摘要
设计和实现了基于FPGA的可编程数字下变频器(DDC),用于宽带数字中频软件无线电接收机中,主要完成了数字下变频、数据抽取等功能。采用自顶向下的模块化设计方法,将整个下变频器划分为基本单元,实现这些功能模块并组成模块库。在具体应用时,优化配置各个模块来满足具体无线通信系统性能的要求。
In this paper, a programmable digital down converter （DDC） applied on wide bandwidth digital IF receiver is designed and implemented by FPGA. The digital down converter can translate digital IF signal into baseband, and decimate the sample sequence. Using Top-Down design method, the whole design is divided into many units implemented respectively and organized to module library. When applying DDC on receiver, these function modules are selected, configured and optimized to satisfy the wireless system demand.
出处
《微型机与应用》
2013年第17期53-55,共3页
Microcomputer & Its Applications
