Journal of Infrared and Millimeter Waves, Volume. 41, Issue 3, 597(2022)
Nonlinearity correction of FY-3E HIRAS-II in pre-launch thermal vacuum calibration tests
Fig. 2. Comparison of normalized spectrum between first-order and second-order interferogram after FFT
Fig. 3. Raw spectrum of internal calibration target at 300 K form HIRAS-II TVAC tests:(a)LW,(b)MW1,(c)MW2
Fig. 5. Comparison of the raw spectrum of HIRAS-II between simulation and measurement
Fig. 7. NL correction coefficients of LW:(a)first method,(b)second method
Fig. 8. NL correction coefficients of MW1:(a)first method,(b)second method
Fig. 9. Standard deviation of NL correction coefficients with the first method(a)LW of all TVAC,(b)MW1 of all TVAC,(c)LW of different TVAC,(d)MW1 of different TVAC
Fig. 10. Standard deviation of NL correction coefficients with the second method(a)LW of all TVAC,(b)MW1 of all TVAC,(c)LW of different TVAC,(d)MW1 of different TVAC
Fig. 11. The uncertainty of NL correction coefficients(a)LW of first and second method,(b)MW1 of first and second method
Fig. 12. Responsivity of each wavenumber in LW with NL correction and non-NL correction(a)before scale,(b)after scale
Fig. 13. Responsivity of each wavenumber in MW1 with NL correction and non-NL correction(a)before scale,(b)after scale
Fig. 14. BT bias of ES calibration target of three typical temperatures with NL correction and non-NL correction(a)240.41 K,(b)280.29 K,(c)300.44 K
Fig. 16. BT bias of various temperature points with NL correction in LW
Fig. 17. BT bias of various temperature points with NL correction in MW1
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Tian-Hang YANG, Ming-Jian GU, Chun-Yuan SHAO, Chun-Qiang WU, Cheng-Li QI, Xiu-Qing HU. Nonlinearity correction of FY-3E HIRAS-II in pre-launch thermal vacuum calibration tests[J]. Journal of Infrared and Millimeter Waves, 2022, 41(3): 597
Category: Research Articles
Received: Sep. 9, 2021
Accepted: --
Published Online: Jul. 8, 2022
The Author Email: Ming-Jian GU (gumingj@sina.com)