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Chinese Journal of Lasers, Volume. 44, Issue 1, 110002(2017)

Correction to Nonlinearity in Interferometric Data and Its Effect on Radiometric Calibration

Yang Minzhu1,2、*, Zou Yaopu1,2, Zhang Lei1,2, and Han Changpei2
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  • 1[in Chinese]
  • 2[in Chinese]
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    AbstractGet PDF(in Chinese)
    Figures&Tables (11)
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    References (4)
    Cited By (4)
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    Figures & Tables(11)
    Normalized interferogram

    Fig. 1. Normalized interferogram

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    Comparison of spectra obtained after FFT

    Fig. 2. Comparison of spectra obtained after FFT

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    Actual spectrum under the influence of nonlinearity

    Fig. 3. Actual spectrum under the influence of nonlinearity

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    Comparison of spectra before and after nonlinearity correction

    Fig. 4. Comparison of spectra before and after nonlinearity correction

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    Comparison between connection of actual calibration data and fitted curve at 1800 cm-1. (a) Before correction; (b) after correction

    Fig. 5. Comparison between connection of actual calibration data and fitted curve at 1800 cm-1. (a) Before correction; (b) after correction

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    Comparison of simulated calibration data before and after correction

    Fig. 6. Comparison of simulated calibration data before and after correction

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    Comparison of actual calibration data before and after correction

    Fig. 7. Comparison of actual calibration data before and after correction

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    Normalized spectra of (a) simulated data and (b) actual data before and after correction

    Fig. 8. Normalized spectra of (a) simulated data and (b) actual data before and after correction

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    • Table 1. R2 before and after correction

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      Table 1. R2 before and after correction

      Wavenumber /cm-117001800190020002100
      R2 (before correction)0.99560.99530.99610.99600.9934
      R2 (after correction)0.99900.99880.99910.99870.9969

    • Table 2. R2 before and after correction

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      Table 2. R2 before and after correction

      Wavenumber /cm-117001800190020002100
      R2 (before correction)0.98440.98540.98720.97620.9818
      R2 (after correction)0.99610.99610.99670.98770.9918

    • Table 3. REQ before and after correction

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      Table 3. REQ before and after correction

      Temperature /K180250280300330
      REQ (before correction)0.00350.00530.00640.00570.0026
      REQ (after correction)0.00350.00300.00290.00240.0014
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    Yang Minzhu, Zou Yaopu, Zhang Lei, Han Changpei. Correction to Nonlinearity in Interferometric Data and Its Effect on Radiometric Calibration[J]. Chinese Journal of Lasers, 2017, 44(1): 110002

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    Paper Information

    Category: Remote Sensing and Sensors

    Received: Aug. 8, 2016

    Accepted: --

    Published Online: Jan. 10, 2017

    The Author Email: Yang Minzhu (15821372732@163.com)

    DOI:10.3788/CJL201744.0110002

    Topics

    laser devices and laser physics
    Lasers and Laser Optics
    Laser physics
    laser manufacturing
    Instrumentation, Measurement and Metrology