摘要
通过对通用串行总线(USB)协议和直接数字合成(DDS)技术的研究和分析,设计实现了一种采用DDS技术的高精度频率源,并且能通过计算机应用软件对其进行实时控制。给出了该设计的硬件结构与部分关键程序的结构,同时给出了对该设计性能参数的测量结果,并对其进行了简单分析和探讨。
A high-accuracy frequency source, which is based on the direct digital synthesis （ DDS ） and is controlled in real-time by the application software run on PC, has been designed and implemented, after the USB （universal serial bus） protocol and DDS were studied and analyzed. In this paper, the hardware structure and the key software architecture are introduced, and the measurement on the performance parameters for this design is given and discussed briefly.
出处
《时间频率学报》
CSCD
2008年第2期121-126,共6页
Journal of Time and Frequency
基金
国家863计划资助项目(2007AA12Z335)
关键词
频率源
直接数字合成
通用串行总线
frequency source
direct digital synthesis （DDS）
universal serial bus （USB）
