基于DDS的数字倍频器研究及其应用  

Research and Application of Digital Frequency-multiplier Based on DDS

作　　者：梁文海[1] 廖磊[1] 吴均[1] 

机构地区：[1]四川师范大学物理与电子工程学院,四川成都610068

出　　处：《微计算机信息》2009年第1期141-142,122,共3页Control & Automation

摘　　要：利用DDS并结合等精度频率测量原理实现了周期性信号的数字倍频。倍频时通过单片机测出输入信号频率,并根据倍频系数算出倍频信号频率,最后利用DDS来产生所需的倍频信号。对倍频的原理、信号倍频的准确度作了理论分析,并通过实验验证了设计的正确性。Has realized the digital-frequency-multiplication of periodic signal based on the DDS and equal-precision frequency measurement. The MCU determines the input signal frequency and calculates the frequency-multiplication-signal＇s frequency according to the frequency multiplication number, and produces the frequency-multiplication-signal using DDS.The frequency multiplication principle and accuracy are analyzed, and has confirmed the design accuracy through the experiment.

关 键 词：数字倍频器 等精度 频率测量 直接数字合成器 

分 类 号：TM93[电气工程—电力电子与电力传动]