摘要
简单介绍了直接数字频率合成(DDS)技术和Simulink仿真系统的特点及背景,阐述了DDS的基本工作原理并对它的主要杂散进行了分析;在Simulink环境下建立了DDS的动态仿真模型,分析了DDS动态仿真模型各模块的功能和来源;对所建系统进行了仿真实验,在实验的基础上系统地分析了仿真结果,并给出了相位截断对DDS频谱分布的影响,为研究和设计直接数字频率合成系统提供了理论和实验基础。
The characteristics and background of the Direct Digital Synthesis （DDS） and Simulink simulation system are introduced simply. The operation principle of DDS is expatiated and it＇s primary scattering is analyzed. The dynamic simulation system on DDS is set up in Simulink simulation system, and the sources and function of the dynamic simulation system are introduced. The authors do the simulation experiment of the system, the result of simulation on DDS is analyzed systematically and the influence of phase truncation on DDS is obtained. It provides a theoretical and experimental base for the study and design of DDS systems.
出处
《太原理工大学学报》
CAS
北大核心
2006年第2期155-157,164,共4页
Journal of Taiyuan University of Technology
基金
山西省自然科学基金资助项目(20051037)
