现代电子技术2011，Vol.34Issue(21)：28-30,33,4.
基于FPGA的高精度相位差测量算法实现
Implementation of High Precision Phase Difference Measurement Algorithm Based on FPGA
郎杰 1邹建彬 1张尔扬1
作者信息
- 1. 国防科学技术大学电子科学与工程学院,湖南长沙410073
- 折叠
摘要
Abstract
Two kinds of high precision phase difference measurement algorithms are presented: correlation measurement based on direct digital synthesize (DDS) and FFT measurement based on fast Fourier transform (FFT). The performance of these two algorithms under different SNR and data length are analyzed by theoretical simulation, and a design scheme of hardware platform is proposed. The two kinds of phase difference algorithms are realized on the hardware platform where the core of the platform that is high performance FPGA chip XC5SX95T is implemented. The hardware platform can achieve a well precision through the real-time measurement results of phase difference.关键词
相位差/相关/FFT/FPGAKey words
phase difference/ correlation/ FFT/ FPGA分类
信息技术与安全科学引用本文复制引用
郎杰,邹建彬,张尔扬..基于FPGA的高精度相位差测量算法实现[J].现代电子技术,2011,34(21):28-30,33,4.
