全光纤位移干涉测速系统中小波基的选取研究

LIU Biao; WU Yun-feng; ZHAO Xin-cai

doi:10.3969/j.issn.1001-3806.2012.02.027

为了使全光纤位移干涉测速系统能够准确稳定地测速,采用小波基分析问题的方法,对全光纤位移干涉测速仪信号进行了理论分析,并选取6种小波基函数进行计算机模拟,选定了适合全光纤位移干涉测速仪信号分析方法的最优小波基。与此同时,分别利用自由落体运动实验和高速爆轰实验验证了系统的精确性和稳定性,精确度达到99%,稳定性极高。结果表明,最优小波基的选取是合理的。

全光纤位移干涉测速系统中小波基的选取研究

Corresponding author: WU Yun-feng, yfwu-72@163.com;

1. School of Optoelectronic Information, University of Electronic Science and Technology of China, Chengdu 610054, China;

2. Institate of Fluid Physics, China Academy of Engineering Physics, Mianyang 621900, China

Received Date: 2011-06-13

Accepted Date: 2011-07-29

Available Online: 2012-03-25

Abstract: 为了使全光纤位移干涉测速系统能够准确稳定地测速,采用小波基分析问题的方法,对全光纤位移干涉测速仪信号进行了理论分析,并选取6种小波基函数进行计算机模拟,选定了适合全光纤位移干涉测速仪信号分析方法的最优小波基。与此同时,分别利用自由落体运动实验和高速爆轰实验验证了系统的精确性和稳定性,精确度达到99%,稳定性极高。结果表明,最优小波基的选取是合理的。

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Reference (11)

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全光纤位移干涉测速系统中小波基的选取研究

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