• Acta Photonica Sinica
  • Vol. 49, Issue 12, 83 (2020)
Ting-ting YU1、2, Yu-tao FENG1, Di FU1, Xuan WANG1、2, Chen SUN1、2, and Qing-lan BAI1
Author Affiliations
  • 1Key Laboratory of Spectral Imaging Technology, Xi’an Institute of Optics and Precision Mechanics, Chinese Academy of Sciences, Xi’an709, China
  • 2University of Chinese Academy of Sciences, Beijing100049, China
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    DOI: 10.3788/gzxb20204912.1230001 Cite this Article
    Ting-ting YU, Yu-tao FENG, Di FU, Xuan WANG, Chen SUN, Qing-lan BAI. Analysis of Influence of Spike on Phase Retrieval Accuracy of Doppler Asymmetric Spatial Heterodyne Spectrometer and Correction Method[J]. Acta Photonica Sinica, 2020, 49(12): 83 Copy Citation Text show less
    Schematic of the Doppler asymmetric spatial heterodyne interferometer
    Fig. 1. Schematic of the Doppler asymmetric spatial heterodyne interferometer
    Flow chart of phase retrieval
    Fig. 2. Flow chart of phase retrieval
    Relationship between phase error and spike center position and intensity
    Fig. 3. Relationship between phase error and spike center position and intensity
    Relationship between phase error and spike center intensity and peak width
    Fig. 4. Relationship between phase error and spike center intensity and peak width
    Flow chart of nearest neighbor comparison median filtering algorithm
    Fig. 5. Flow chart of nearest neighbor comparison median filtering algorithm
    Spikes on interferogram
    Fig. 6. Spikes on interferogram
    The correction effects of five algorithms on spike are analyzed
    Fig. 7. The correction effects of five algorithms on spike are analyzed
    ParameterValue
    OPD050 mm
    Spectral resolution0.78 cm-1
    Working wavelength630.5 nm
    Interferogram average digital number369.92
    Interferogram average SNR17.39
    Interferogram sample count1 024
    Table 1. Principle parameters of DASH
    Data1Data2Data3Data4Data5Data6Data7
    Experimental phase error /rad0.154 60.027 10.020 20.013 90.006 8-0.004 2-0.002 1
    Theoretical phase error /rad0.154 30.026 90.021 30.013 80.006 1-0.004 2-0.002 2
    Table 2. Experimental and theoretical calculation of inversion phase error
    Data1Data2Data3Data4Data5Data6Data7
    Standard inversion phase /rad0.306 80.780 60.194 50.025 51.493 30.724 40.789 2
    Original inversion phase /rad0.152 10.807 70.214 70.011 61.500 20.728 50.791 4
    Inversion phase of mean filtering method /rad0.243 60.801 20.200 70.018 91.494 50.727 20.791 1
    Inversion phase of median filtering method /rad0.268 50.800 70.197 80.020 31.499 60.725 10.790 3
    Inversion phase of global threshold method /rad0.311 60.779 80.192 20.028 11.501 30.722 30.788 3
    Inversion phase of the new method /rad0.306 40.780 90.194 90.026 01.493 50.724 20.789 0
    Table 3. Comparison of inversion phase results of spike processing algorithms
    Ting-ting YU, Yu-tao FENG, Di FU, Xuan WANG, Chen SUN, Qing-lan BAI. Analysis of Influence of Spike on Phase Retrieval Accuracy of Doppler Asymmetric Spatial Heterodyne Spectrometer and Correction Method[J]. Acta Photonica Sinica, 2020, 49(12): 83
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