摘要
本文介绍了采用TMS3 2 0LF2 40 7测量两路正弦信号相位差的检测系统。由于DSP运算速度快、数据处理能力强 ,其性能优于采用单片机构成的相位测量系统。为提高测量精度 ,本系统还采用了软件误差校正方法 。
The paper presents TMS320LF2407-based measurement of the phase difference of two sine signals.The phase difference measurement system using DSP exceeded that using SCM because of DSP's high-speed performance and powerful data processing.In order to improve the measurement accuracy,a software correction is introduced so that the additional phase angles of the measurement chanels can be eliminated.
出处
《自动化技术与应用》
2004年第5期58-61,共4页
Techniques of Automation and Applications
关键词
相位差
程控放大
DSP
过零比较
Phase difference
Programmable gain amplifier
DSP
Zero-cross comparator
