Selection of frequency domain filter based on match of different location specific points

被引：0

作者：

Wei, Dong ^{[1
]}

Enoki, Kenta ^{[1
]}

Aketagawa, Masato ^{[1
]}

机构：

[1] Nagaoka Univ Technol, Dept Mech Engn, 1603-1 Kamitomioka Cho, Nagaoka, Niigata 9402188, Japan

来源：

OPTICAL METROLOGY AND INSPECTION FOR INDUSTRIAL APPLICATIONS V | 2018年 / 10819卷

基金：

日本学术振兴会;

关键词：

Instrumentation; measurement; and metrology; Fourier optics and signal processing; Intreferometry; Fringe analysis; REFRACTIVE-INDEX; DISTANCE MEASUREMENT; PRECISION-MEASUREMENT; AIR; LENGTH; LASER; LONG;

D O I：

10.1117/12.2500637

中图分类号：

O43 [光学];

学科分类号：

070207 ; 0803 ;

摘要：

This study presents an algorithm for automatic selection of a frequency domain filter for the Fourier transform method of interference fringe analysis in a pulse-train interferometer. In this approach, the equality between the interference-fringe envelope peak point and the phase-crossing point of different frequency components is used to distinguish between the signal and noise in the frequency domain. The efficacy of the proposed technique is demonstrated by numerical experiments.

引用

页数：6

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