基于采样数字法和自功率谱幅值校正的相位差测量方法

A New Method Of Measuring Phase Difference Based On Sampling Numerical And Self-power-spectrum Amplitude Correction Theory

本文提出一种测量同频率正弦信号相位差的新方法:采样数字和自功率谱幅值校正相位差测量法。和一些传统的方法相比,此方法没有理论上的误差,具有硬件电路简单、算法简单、计算量小的特点。给出了理论分析和实际的仿真结果。结果计算表明,本算法的精度可达到2.0分。完全满足工程应用的需要。

This paper presents a new method of measuring phase differencc:sampling numerical and self-power-spectrum amplitude correction method. The method has no theoretical deviation comparing with other traditional methods, being provided with the virtues of circuit and arithmetic simple . It gives theory testify and simulation. The result of simulation tests that the measuring precision is about 2.0 minutes. This method meets the need of engineering application.