基于FPGA+DDS的正弦信号发生器的设计  

The design of DDS signal generator based on FPGA

作　　者：曹志锋[1] 王小华[1] 程欢[1] 

机构地区：[1]长沙理工大学电气与信息工程学院,湖南长沙410004

出　　处：《微型机与应用》2012年第14期90-92,共3页Microcomputer & Its Applications

摘　　要：介绍了DDS的发展历史及其两种实现方法的特点,论述了DDS的基本原理,并提出一种基于FPGA的DDS信号发生器的设计方法,使DDS信号发生器具有调频、调相的功能,最后对其性能进行了分析。实验表明该系统具有设计合理、可靠性高、结构简单等特点,具有很好的实用价值。This paper first introduces the development history of DDS and characteristics of two kinds of method to realize DDS,then discusses the basic principle of DDS.At the same time put forward a method to design DDS signal generator based on the FPGA,enables the DDS signal generator with frequency modulation , phase modulation function. Finally, its performance was an- alyzed. Experiment results show that the system with the characteristics of design rational, high reliability, simple stnicture ,etc, It has a good practical value.

关 键 词：FPGA DDS 正弦波 信号发生器 

分 类 号：TN741[电子电信—电路与系统]