摘要
介绍一种新型、实用的短波频率合成器。该频率合成器将直接数字频率合成器(DDS)技术和传统的锁相环(PLL)技术有机地结合起来,具有频率转换速度快、分辨率高、相位噪声低、可靠性高等优点。分析了DDS技术的工作原理及其在短波频率合成器中的应用,给出了具体方案及实施结果。
This paper describes a new and practical shortwave frequency synthesizer. The frequency synthesizer com bines direct digital frequency synthesizer （DDS） technology with traditional phase-locked loop （PPL） technology effec tively. It has advantages of high frequency conversion speed, high resolution, low phase noise and high reliability. This paper analyzes the working principle of DDS technology and the application in the shortwave frequency synthesizer. And it gives specific programs and implementation results.
出处
《仪表技术》
2014年第3期8-11,共4页
Instrumentation Technology
关键词
DDS技术
锁相环
频率合成器
DDS technology
phase-locked loop
frequency synthesizer
