现代电子技术Issue(1)：135-136,140,3.
DDS频率合成器的方波重影现象研究
Research on double shadow of square wave in DDS frequency synthesizer
李辉祥 1黄光明1
作者信息
- 1. 华中师范大学 物理科学与技术学院，湖北 武汉 430079
- 折叠
摘要
Abstract
As the 3rd generation of frequency synthesis technology,direct digital frequency synthesis(DDS)is widely used in instrumentation,communication,radar and other fields. When a DDS-based frequency synthesizer outputs square wave,the waveform comes with double shadow obviously. The double shadow directly impacts the quality of the square wave. The reason of square wave double shadow occurs is analyzed. And an improved algorithm is proposed,which is suitable for FPGA. The new al-gorithm weakens the square wave double shadow effectively.关键词
DDS/方波重影/FPGA/时域Key words
DDS/square wave double shadow/FPGA/time domain分类
信息技术与安全科学引用本文复制引用
李辉祥,黄光明..DDS频率合成器的方波重影现象研究[J].现代电子技术,2014,(1):135-136,140,3.
