| 混合仿真下DDS的改进研究与实现 |
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| 引用本文： | 周磊,王紫婷. 混合仿真下DDS的改进研究与实现[J]. 现代电子技术, 2007, 30(15): 84-86 |
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| 作者姓名： | 周磊 王紫婷 |
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| 作者单位： | 兰州交通大学,电子信息工程学院,甘肃,兰州,730070 |
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| 基金项目： | 兰州交通大学学生科技创新基金 |
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| 摘 要： | 基于高性能FPGA实现的DDS电路是某些对于控制方式、置频速率等方面有特殊要求场合的最佳选择。通过把DDS的核心部件——相位累加器改进为回旋相位累加器,使得存储波形数据的ROM空间降低50%,频率分辨率提升了1倍。另外,在QuartusⅡ,VC与Labwindows/CVI的混合仿真环境下,使得设计完全避免了硬件平台的限制,增加了硬件实现的成功率。
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| 关 键 词： | 现场可编程门阵列 直接数字频率合成器 回旋相位累加器 混合仿真 |
| 文章编号： | 1004-373X（2007）15-084-03 |
| 收稿时间： | 2006-11-29 |
| 修稿时间： | 2006-11-29 |
Improved Research and Implementation of DDS Based on Mixed Simulation |
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| ZHOU Lei,WANG Ziting. Improved Research and Implementation of DDS Based on Mixed Simulation[J]. Modern Electronic Technique, 2007, 30(15): 84-86 |
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| Authors: | ZHOU Lei WANG Ziting |
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| Affiliation: | School of Electronic and Information Engineering, Lanzhou Jiaotong University, Lanzhou, 730070, China |
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| Abstract: | In some places where have the special demands for control mode and the speed of frequency change,DDS based on FPGA is the best chioce.In this paper,we reduce the space of ROM to 50% and by replacing the phase accumulator which is the core component of DDS with whirl phase accumulator,and hike the frequency resolution ratio to 200%.In addition,the mixed simulation environment which is compounded of Quartus II,VC and Labwindows/CVI makes the design avoid limited by the hardware and raise the successful probability of implementation on hardware. |
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| Keywords: | FPGA DDS whirl accumulator mixed simulation |
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