| 基于DDS的高性能信号源的设计 |
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| 引用本文： | 高倩.基于DDS的高性能信号源的设计[J].江苏技术师范学院学报,2005,11(6):48-53. |
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| 作者姓名： | 高倩 |
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| 作者单位： | 江苏技术师范学院电气信息工程学院,江苏常州213001 |
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| 摘 要： | 直接数字频率合成（DDS）是频率合成领域中的一项新技术。本文简要介绍了DDS工作原理及其特性，详细阐述了应用DDS技术和单片机控制技术、选用AD9851芯片研制一台高分辨率、高稳定度和较高纯度信？源粤工程实现方法，给出了系统主要硬件电路、频率控制字传送程序以及抑制杂散的方法。本设计结构简单，拓展性好；人机交互界面友好，数据输入简单、可靠；电磁兼容设计合理，保证了仪器性能稳定。
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| 关 键 词： | DDS AD9851 单片机 电磁兼容设计 |
| 收稿时间： | 2005-08-29 |
| 修稿时间： | 2005-12-01 |
The Design of High Performance Signal Source Based on DDS |
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| GAO Qian.The Design of High Performance Signal Source Based on DDS[J].Journal of Jiangsu Teachers University of Technology,2005,11(6):48-53. |
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| Authors: | GAO Qian |
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| Institution: | School of Electricity and Information Engineering, Jiangsu Teachers University of Technology, Changzhou 213001, China |
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| Abstract: | The direct digital synthesis(DDS)is a new technology in the field of frequency synthesis. This paper briefly introduces the working principle and characteristics of DDS. Then it particularly ex-patiates on the engineering method of developing a signal source of high frequency resolution, high sta-bility and high purity, using the technology of DDS and singlechip, and presents the main circuit of sys-tem hardware , a program of frequency control word transmission and a method of spurious reduction .The design has a simple architecture, a good expanding performance , a nicer interface for interacting with the instrument that makes data input simple and dependable , a reasonable electromagnetism com-patible design that ensures the stability of the signal source. |
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| Keywords: | DDS AD9851 singlechip electromagnetism compatible design |
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