Fast Fourier Transform Measuring the Phase Difference Based on MATLAB

被引：1

作者：

Huang, Qingqing ^{[1
]}

Shao, Jianlong ^{[1
]}

机构：

[1] Kunming Univ Sci & Technol, Kunming 650500, Yunnan Province, Peoples R China

来源：

MECHATRONICS ENGINEERING, COMPUTING AND INFORMATION TECHNOLOGY | 2014年 / 556-562卷

关键词：

Phase difference; Fast Fourier transform; Measurement accuracy;

D O I：

10.4028/www.scientific.net/AMM.556-562.3035

中图分类号：

TM [电工技术]; TN [电子技术、通信技术];

学科分类号：

0808 ; 0809 ;

摘要：

This paper expounded the principle of using Fast Fourier transform measuring the phase difference and completed the simulation of measuring the phase differences of a plurality of signal. The simulation results show that the method can rapidly and accurately realize the phase difference measurement without considering the AD quantization error and noise interference. In considering the AD quantization error and random noise, Fast Fourier transform measuring the phase difference still has high measurement accuracy, and the measurement error can be controlled within 0.01 degrees. The method can be applied in practical engineering.

引用

页码：3035 / 3038

页数：4