| 基于FPGA的直接数字频率合成器的设计 |
| |
| 引用本文： | 张丽萍,朱尧富. 基于FPGA的直接数字频率合成器的设计[J]. 应用科技, 2010, 37(2): 5-8. DOI: 10.3969/j.issn.1009-671X.2010.02.002 |
| |
| 作者姓名： | 张丽萍 朱尧富 |
| |
| 作者单位： | 台州职业技术学院,电子电气工程系,浙江,台州,318000 |
| |
| 摘 要： | 为了实现幅值和频率在一定范围连续可调,频率步进达到1Hz以下信号发生器的设计.采用直接数字频率合成技术(DDS),介绍根据直接数字频率合成技术组成及原理,给出了基于可编程逻辑器件FPGA及相应EDA软件QuartusⅡ实现DDS的具体设计方案及编程实现方法.通过改变设计参数可以调节所产生波形频率和幅度;通过改变ROM查找表中波形数据可以产生任意波形.利用FPGA器件设计DDS,大大简化了电路设计过程,缩短了调试时间,并为修改、添加DDS的功能提供了方便.
|
| 关 键 词： | 直接数字频率合成 FPGA QuartusⅡ 查找表 |
Direct digital frequency synthesizer design based on FPGA |
| |
| ZHANG Li-ping,ZHU Yao-fu. Direct digital frequency synthesizer design based on FPGA[J]. Applied Science and Technology, 2010, 37(2): 5-8. DOI: 10.3969/j.issn.1009-671X.2010.02.002 |
| |
| Authors: | ZHANG Li-ping ZHU Yao-fu |
| |
| Affiliation: | ZHANG Li-ping,ZHU Yao-fu(Department of Electronic , Electric Engineering,Taizhou Vocational Technical College,Taizhou 318000,China) |
| |
| Abstract: | To make a signal amplitude and frequency continuously adjustable in a certain range, this paper introduces the structure and principles of DDS （Direct Digital Frequency Synthesizer） for the design of signal generator with frequency stepping less than 1Hz. Also a detailed design method of DDS realization based on FPGA and corresponding EDA software QuartusⅡ is given. It can adjust the frequency and amplitude of a waveform by changing the parameters, and generate arbitrary waveform by changing the waveform data in the ROM lookup table. Designing DDS by making use of FPGA greatly simplifies the design process of electric circuit, shortens the debugging time, and makes it convenient for modification and adding of DDS. |
| |
| Keywords: | FPGA |
| 本文献已被 CNKI 维普 万方数据 等数据库收录！ |
|
