2018
DOI: 10.3390/app8101954
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Error Correction for FSI-Based System without Cooperative Target Using an Adaptive Filtering Method and a Phase-Matching Mosaic Algorithm

Abstract: Featured Application: Absolute distance measurement and surface profiling.Abstract: In our frequency scanning interferometry-based (FSI-based) absolute distance measurement system, a frequency sampling method is used to eliminate the influence of laser tuning nonlinearity. However, because the external cavity laser (ECL) has been used for five years, factors such as the mode hopping of the ECL and the low signal-to-noise ratio (SNR) in a non-cooperative target measurement bring new problems, including erroneou… Show more

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Cited by 4 publications
(3 citation statements)
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“…Xiong et al calculated the effective center wavelength for heterodyne interferometry of an optical frequency comb [23]. Gao et al propose a technique to compensate the FS interferometer [24] and Xiong et al propose an adaptive filtering method to correct errors due to interfering signals of FS interferometer [25]. In the area of grating diffraction-based interferometer, a double diffraction heterodyne interferometer was developed by Chang [26].…”
Section: Laser Interferometer Length Measurementsmentioning
confidence: 99%
“…Xiong et al calculated the effective center wavelength for heterodyne interferometry of an optical frequency comb [23]. Gao et al propose a technique to compensate the FS interferometer [24] and Xiong et al propose an adaptive filtering method to correct errors due to interfering signals of FS interferometer [25]. In the area of grating diffraction-based interferometer, a double diffraction heterodyne interferometer was developed by Chang [26].…”
Section: Laser Interferometer Length Measurementsmentioning
confidence: 99%
“…The direct power amplification of the measurement light is the easiest method to use; therefore, many schemes for cooperative and non-cooperative target measurements use laser power amplifiers to strengthen the return light by increasing the power of the probe light [19][20][21]. Additionally, using a focusing system to focus the probe light on the surface to be measured can increase the power of the reflected light [22][23][24]. Another good solution is to allow more returned light to be recovered.…”
Section: Introductionmentioning
confidence: 99%
“…Absolute distance measurement (ADM) technologies are of significant application in scientific and engineering fields such as large equipment manufacturing, spacecraft fabrication, and general-purpose coordinate measurements [1][2][3]. Various methods of ADM have been developed over the past decades, such as phase shift-based ranging [4][5][6], frequency scanning interferometry-based ranging [7][8][9][10], multi-wavelength interference-based ranging [11][12][13][14], and femtosecond optical comb-based ranging [10,[15][16][17]. In recent years, the latter three technologies have achieved great accuracy in laboratory, but the systems are complex and their performance needs to be enhanced in an industrial setting.…”
Section: Introductionmentioning
confidence: 99%