摘要
介绍一种小步进、低相位噪声的频率合成方法。采用直接数字合成(DDS)产生小步进信号,利用5 MHz整数步进锁相环与混频电路组合方式改善了合成器的杂散和相位噪声。
This passage introduced a frequency synthesizer with small stepps and low phased noise. Using the direct digital synthesis(DDS) produced small step signal,5 MHz phased-lock loops and mixing circuit were used for improving the performance of the system.
出处
《电子技术应用》
北大核心
2010年第10期51-52,56,共3页
Application of Electronic Technique