摘要
为了实现直接数字频率合成信号的产生,文中基于直接数字频率合成器(Direct Digital Frequency Synthesis,DDS)的工作原理、基本结构、特性分析、输出频谱,采用了MATLAB语言进行编程,结合交互式图形用户界面(Graphic User Interface,简称GUI),调整参数k(1≤k≤100)可以产生1～100 Hz任意频率的时域和频域波形,能够产生直接数字频率合成信号,达到设计要求。
In order to realize the direct digital frequency synthesis（DDS）signal generation,In this paper,based on direct digital frequency synthesizer of the work principles,basic structures,features analysis and the output spectrum,using the MATLAB language programming,combining graphic user interface（GUI）,adjusting the parameters k（1≤k≤100）,can produce time domain and frequency domain waveforms of 1 Hz～100 Hz arbitrary frequency and generate the direct digital frequency synthesis signal,to meet the design requirement.
出处
《电子设计工程》
2012年第8期109-111,114,共4页
Electronic Design Engineering
