Analysis of Key Parameters of Passive Tropospheric Wind Field Detection Based on Oxygen A-band Absorption Line

Huan LIU; Yutao FENG; Di FU; Hengxiang ZHAO; Liang KONG; Xiongbo HAO; Chenguang CHANG; Bin HAN; Sufeng WANG

doi:10.3788/gzxb20235212.1201001

Acta Photonica Sinica, Volume. 52, Issue 12, 1201001(2023)

Analysis of Key Parameters of Passive Tropospheric Wind Field Detection Based on Oxygen A-band Absorption Line

Huan LIU1...2, Yutao FENG1,*, Di FU1,2, Hengxiang ZHAO1, Liang KONG1, Xiongbo HAO1, Chenguang CHANG1,2, Bin HAN1,2, and Sufeng WANG12 |Show fewer author(s)

Author Affiliations

¹Key Laboratory of Spectral Imaging Technology，Xi'an Institute of Optics Precision Mechanic of Chinese Academy of Sciences，Xi'an 710119，China

²University of Chinese Academy of Sciences，Beijing 100049，China

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Figures & Tables(18)

Fig. 1. Target spectrum selection of wind measurement

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Fig. 2. Schematic diagram of limb viewing

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Fig. 3. Schematic diagram of wind field detection instrument based on DASH

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Fig. 4. The flow chart of atmospheric radiative transfer

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Fig. 5. Simulation of the filtering process

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Fig. 6. Narrow-band absorption spectrum obtained through the filters

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Fig. 7. Phase shift of interferogram

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Fig. 8. Relative error of wind speed retrieval as a function of the optical path difference

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Fig. 9. Relative error of wind speed retrieval as a function of the spectral resolution

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Fig. 10. Relative error of wind speed retrieval as a function of the bandpass filter FWHM

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Fig. 11. Relative error of wind speed retrieval as a function of the etalon spacing

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Fig. 12. Relative error of wind speed retrieval as a function of the etalon finesse

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Fig. 13. Relative error of wind speed retrieval as a function of the SNR

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Fig. 14. Relative error of wind speed retrieval as a function of the offset of transmission peak

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Fig. 15. Relative error of wind speed retrieval as a function of the off-axis

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Table 1. Filter design parameters
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Table 1. Filter design parameters
Parameters Value
Etalon finesse 64.463
Etalon spacing 0.1 cm
Bandpass filter center wavenumber 12 999.957 $c m^{- 1}$
Bandpass filter FWHM 0.163 nm

Table 2. Principle parameters of DASH
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Table 2. Principle parameters of DASH
Parameters Value
Littrow wavenumber 12 980 $c m^{- 1}$
Littrow angle 11.1°
Grating density 500 gr/mm
OPD offset 6.6 mm
Spectral resolution 0.5 $c m^{- 1}$
Detector resolution 2 048 $\times$ 2 048
Pixel size 11 $μ m$

Table 3. Wind speed retrieval results
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Table 3. Wind speed retrieval results
Wind speed/（m·s^-1） Inversion of wind speed/（m·s^-1） Relative error
10 9.98 0.19%
20 19.98 0.09%
30 30.01 0.02%
40 40.05 0.12%
50 50.11 0.23%
60 60.20 0.33%

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Huan LIU, Yutao FENG, Di FU, Hengxiang ZHAO, Liang KONG, Xiongbo HAO, Chenguang CHANG, Bin HAN, Sufeng WANG. Analysis of Key Parameters of Passive Tropospheric Wind Field Detection Based on Oxygen A-band Absorption Line[J]. Acta Photonica Sinica, 2023, 52(12): 1201001

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