摘要
文章提出了一种有效分离并重构信号的数字化方案。信号A和信号B通过加法器叠加成信号C,对信号C进行快速傅里叶变换,再通过直接数字合成(Direct Digital Synthesizer,DDS)模块分别输出重构信号A′和重构信号B′。测试结果表明:当输入信号为1时,V PP的正弦波或者三角波频率在10~100 kHz。所提方案能够有效分离出2路重构信号,重构信号无失真、无漂移,能够调节2路信号相位差。
The article proposes an effective digital scheme for separating and reconstructing signals.Signal A and signal B are superimposed into signal C through an adder.By fast Fourier transform for signal C,the reconstructed signal A′and reconstructed signal B′are output separately through a direct digital synthesizer(DDS)module.The test results indicate that when the input signal is 1,the frequency of V PP sine or triangular wave is within 10~100 kHz.The proposed scheme can effectively separate two reconstructed signals,without distortion or drift,and adjust the phase difference between the two signals.
作者
杨敏
陈佳裕
陈阳
YANG Min;CHEN Jiayu;CHEN Yang(School of Electronics and Information Engineering,Wuyi University,Jiangmen 529020,China;School of Mechanical and Automation Engineering,Wuyi University,Jiangmen 529020,China)
出处
《无线互联科技》
2024年第20期8-12,25,共6页
Wireless Internet Science and Technology
基金
广东省教学质量与教学改革工程建设项目,项目名称:工程认证背景下地方院校《电路分析基础》课程改革,项目编号:GDJX2021008
五邑大学校级本科高质量课程建设与创新创业教育建设改革项目,项目编号:KC2022019。
关键词
信号分离
快速傅里叶变换
重构信号
直接数字合成
数字化
signal separation
fast Fourier transform
reconstructed signal
direct digital synthesizer
digitalization
