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Six-frame Algorithm Insensitive to the Linear Reference Phase and Detector Nonlinearity Errors for Phase-stepping Interferometry
引用本文:WEI Chunlong(Department of Electronic Engineering,Shanghai University Jiading Campus,Shanghai 201800,China)CHEN Mingyi, DING Zheng(Department of Mechanic Engineering,Shanghai University Jiading Campus),Shanghai 201800,China)WANG Zhijiang(Shanghai Inst. Six-frame Algorithm Insensitive to the Linear Reference Phase and Detector Nonlinearity Errors for Phase-stepping Interferometry[J]. Chinese Journal of Lasers, 1997, 6(2): 117-121
作者姓名:WEI Chunlong(Department of Electronic Engineering  Shanghai University Jiading Campus  Shanghai 201800  China)CHEN Mingyi   DING Zheng(Department of Mechanic Engineering  Shanghai University Jiading Campus)  Shanghai 201800  China)WANG Zhijiang(Shanghai Inst
作者单位:WEI Chunlong(Department of Electronic Engineering,Shanghai University Jiading Campus,Shanghai 201800,China)CHEN Mingyi; DING Zheng(Department of Mechanic Engineering,Shanghai University Jiading Campus),Shanghai 201800,China)WANG Zhijiang(Shanghai Inst
摘    要:l.IntroductionForphase-stepping(orphase-shifting)interferometrytherearetwomainsourcesoferror:thereferencephaseerrorandthenonlinearerrorofdetector.Inearlyresearch,onlyCarreISalgorithm[1]cancompletelyeliminatethelinearreferencephaseerroriftheinterferogramsaresampledintermsofthesamephaseshiftinginterval.Recemtly,manya1gorithmshavebeendeveloPedtoreducethesetwoerrorsources.J.SchmitandK.Creath[2Jusedanextendedaveragingtechniquetoobtainasetoferror-comPensatingalgo-rithmsthatareinsensitivetothelin…

收稿时间:1996-10-09

Six-frame Algorithm Insensitive to the Linear Reference Phase and Detector Nonlinearity Errors for Phase-stepping Interferometry
WEI Chunlong. Six-frame Algorithm Insensitive to the Linear Reference Phase and Detector Nonlinearity Errors for Phase-stepping Interferometry[J]. 中国激光(英文版), 1997, 6(2): 117-121
Authors:WEI Chunlong
Abstract:A new six-frame algorithm based on Hariharan' s five-frame algorithmis derived. Although six-frame interferograms are needed, the new algorithm is immune to the effect of reference phase error or the second order detector nonlinearity error.Furthermore, if they exist simultaneously, the new algorithm is insensitive to both of the errors. It is better than B. Zhao and Y. Surrel's six-frame algorithm to some extent.
Keywords:interferometry   phase-stepping algorithm
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