Research on Error of Phase Difference Algorithm Based on Correlation Theory

李建民; 赵鹏; 侯文; 郑宾; 郑浩鑫

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Research on Error of Phase Difference Algorithm Based on Correlation Theory

更新时间：2026-09-14

- Research on Error of Phase Difference Algorithm Based on Correlation Theory
- 基于相关理论的相位差算法的误差研究
- Vol. 30, Issue 6, Pages: 616-619(2009)
- 作者机构：
  
  1. 中北大学仪器科学与动态测试教育部重点实验室
  2. 天津大学精密仪器与光电子工程学院
- 作者简介：
- 基金信息：
- DOI：
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- Published：2009
- 稿件说明：
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李建民, 赵鹏, 侯文, et al. Research on Error of Phase Difference Algorithm Based on Correlation Theory[J]. 2009, 30(6): 616-619.
DOI：

李建民, 赵鹏, 侯文, et al. Research on Error of Phase Difference Algorithm Based on Correlation Theory[J]. 2009, 30(6): 616-619. DOI：

摘要

为了提高电信号相位差的测量精度

提出了基于双相关算法的相位差测量新方法.对于同一对正弦波信号

利用此方法进行相位差仿真测量

当采样频率、采样精度和噪声源参数发生改变时

测量误差会有所不同.仿真结果表明

信号的采样频率和噪声源对测试结果影响较大

最大相对误差可达到1%

而采样精度对测量结果的影响较小

约0.1%.该算法已应用于某导弹舵机的测试系统中

经过多年使用

测试性能稳定

结果符合要求.

Abstract

In order to improve the measurement precision of phrase difference of electrical signals

a new method is put forward based on double correlation algorithm.Numerical simulations have been done to measure the phase difference of the same couple of sine signals by using this method.The measurement error varies with the sampling frequency

parameters of noise source and sampling bits.The simulation results show that the sampling frequency and parameters of noise source affect the measurement precision much more than the sample bits do by 1% vs.0.1%.The algorithm has been applied to a missile steering engine testing system.After several years' operation

the performance of the system keeps reliable and meets the user's requirements.

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references

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孙晓云,郭立炜,孙会琴.基于LabWindows/CVI的虚拟仪器设计与应用[M].北京:电子工业出版社,2005.

张若青,谢富春.一种实用的相位测量方法[J].北方工业大学学报,1999,11(3):51-54.Zhang Ruoqing,Xie Fuchun.A practical method for phase difference measurement[J].Journal of North ChinaUniversity of Technology,1999,11(3):51-54.(in Chinese)

张毅刚,付平,王丽.采用数字相关法测量相位差[J].计量学报,2000,21(3):216-221.Zhang Yigang,Fu Ping,Wang Li.Phase difference measurement with digital correlation method[J].ActaMetrologica Sinica,2000,21(3):216-221.(in Chinese)

刘灿涛,赵伟,袁俊.基于数字相关原理的相位差测量新方法[J].计量学报,2003,23(3):219-223.Liu Cantao,Zhao Wei,Yuan Jun.A new method for phase difference measurement based on digital correlationtheory[J].Acta Metrologica Sinica,2003,23(3):219-223.(in Chinese)

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