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An Effective Wavelength Detection Method Based on Echelle Spectra Reduction
L. Yin; Bayanheshig; J. C. Cui; J. Yang; J. W. Zhu and X. F. Yao
2015
发表期刊Spectroscopy and Spectral Analysis
卷号35期号:3
文章类型期刊
其他摘要Echellespectrometerwithhighdispersion,highresolution,widespectralcoverage,fullspectrumtransientdirect readingandmanyotheradvantages,isoneoftherepresentativeoftheadvancedspectrometer.Inthecommercializationtrendof echellespectrometer,themethodoftwodimensionspectraimageprocessingisbecomingmoreandmoreimportant.Currently, centroidextractionalgorithmoftenbeusedfirsttodetectthecentroidpositionofeffectivefaculaandthencombinedwithechelle spectrumreductionmethodtodetecttheeffectivewavelength,butthismethodismoredifficulttoachievethedesiredrequire ments.Toimprovethespeed,accuracyandtheabilityofimagingerrorcorrectionduringdetectingtheeffectivewavelength,an effectivewavelengthdetectionmethodbasedonspectrareductioniscomingup.Atthebeginning,thetwodimensionspectrawill beconvertedtoaonedimensionimageusingechellespectrareductionmethodinsteadoffindingcentroidofeffectivefacula.And thenbysettingappropriatethresholdtheonedimensionimageiseasytobedealingwiththanthetwodimensionspectraimage andallofthepixelpointsstandforeffectivewavelengthcanbedetectedatonetime.Basedonthisnewidea,thespeedandaccu racyofimageprocessinghavebeenimproved,atthesametimearangeofimagingerrorscanbecompensated.Usingtheechelle spectrographmakeatestapplyingthisalgorithmfordataprocessingtocheckwhetherthismethodisfitforthespectraimage processingornot.Choosingastandardmercurylampasalightsourceduringthetestbecausethestandardmercurylamphavea numberofknowncharacteristiclineswhichcanbeusedtoexaminetheaccuracyofwavelengthdetection.Accordingtoexperi mentalresult,thismethodnotonlyincreaseoperationspeedbutimproveaccuracyofwavelengthdetection,alsotheimaginger rorlowerthan0.05mm (twopixel)canbecorrected,andthewavelengthaccuracywouldupto0.02nm whichcansatisfythe requirementsofechellespectrographforimageprocessing.
收录类别sci
语种英语
文献类型期刊论文
条目标识符http://ir.ciomp.ac.cn/handle/181722/55942
专题中科院长春光机所知识产出
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L. Yin,Bayanheshig,J. C. Cui,et al. An Effective Wavelength Detection Method Based on Echelle Spectra Reduction[J]. Spectroscopy and Spectral Analysis,2015,35(3).
APA L. Yin,Bayanheshig,J. C. Cui,J. Yang,&J. W. Zhu and X. F. Yao.(2015).An Effective Wavelength Detection Method Based on Echelle Spectra Reduction.Spectroscopy and Spectral Analysis,35(3).
MLA L. Yin,et al."An Effective Wavelength Detection Method Based on Echelle Spectra Reduction".Spectroscopy and Spectral Analysis 35.3(2015).
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