Journal of Atmospheric and Environmental Optics, Volume. 18, Issue 4, 295(2023)
Engineering design and in-orbit performance evaluation of polarization crossfire suite onboard the hyperspectral observation satellite
Figures & Tables(16)
![Payloads configuration of hyperspectral observation satellite[16]](/Images/icon/loading.gif){kind=icon}
Fig. 1. Payloads configuration of hyperspectral observation satellite[16]
Fig. 2. Schematic diagram of the working principle of polarization crossfire[3]
Fig. 3. Schematic diagram of second pulse timing implementation scheme
Fig. 6. Results of synchronous observation and acquisition time difference in orbit
Fig. 7. Heat map of correlation between DPC and POSP field of view matching at different pixel positions in DPC
Fig. 8. In-orbit cross-calibration results of DPC and POSP of the hyperspectral observation satellite.(a) 443 nm; (b) 490 nm; (c) 670 nm; (d) 865 nm
Fig. 9. Linear fitting and statistical distribution results of polarization of DPC and POSP[12]. (a) 490 nm; (b) 670 nm; (c) 865 nm
Table 1. Major specifications of DPC
View tableView in ArticleTable 1. Major specifications of DPC
Parameter Specifications Spectrum/nm 433～453, 480～500 (P), 555～575, 660～680 (P),
758～768, 745～785, 845～885 (P), 900～920
Polarization Angle/(°) 0, 60, 120 Total field of view/(°) -50～+50 Measured signal-to-noise ratio ≥ 500 Multi-angle observation ≥ 15 Spatial resolution/km ≤ 3.5 Radiometric calibration error/% ≤ 5 Polarimetric error/% ≤ 2
Table 2. Major specifications of POSP
View tableView in ArticleTable 2. Major specifications of POSP
Parameter Specifications Spectrum/nm 370～390 (P), 400～420 (P), 433～453 (P), 480～500 (P), 660～680 (P), 845～885 (P),
1360～1400 (P), 1580～1640 (P), 2210～2290 (P)
Polarization angle/(°) 0, 45, 90, 135 Total field of view/(°) -50～+50 Measured signal-to-noise ratio ≥ 300 (@380, 410, 1380, 2250 nm)
≥ 550 (@443, 490, 670, 865, 1610 nm)
Spatial resolution/km ≤ 6.41 Radiometric calibration error/% ≤ 5 Polarimetric error/% ≤ 0.5
Table 3. Comparison of detection abilities between DPC and POSP
View tableView in ArticleTable 3. Comparison of detection abilities between DPC and POSP
Detection ability DPC POSP Spatial coverage/km 1850 1850 Spatial resolution/km 3.5 6.4 Spectral coverage Only visible and near-infrared Visible to short-wave infrared Multi-angle detection 15 1 On-board calibrators No Radiation and polarization calibrators Polarimetric accuracy/% 2 0.5
Table 4. Comparison of spectral characteristics between DPC and POSP
View tableView in ArticleTable 4. Comparison of spectral characteristics between DPC and POSP
Number POSP DPC Central wavelength/nm Spectral bandwidth/nm Central wavelength/nm Spectral bandwidth/nm 1 380 20 ― ― 2 410 20 ― ― 3 443 20 443 20 4 490 20 490 20 5 ― 565 20 6 670 20 670 20 7 ― ― 763 10 8 ― ― 765 40 9 865 40 865 40 10 ― ― 910 20 11 1380 40 ― ― 12 1610 60 ― ― 13 2250 80 ― ―
Table 5. Spectral channel acquisition matching table
View tableView in ArticleTable 5. Spectral channel acquisition matching table
DPC runner sequence DPC channel POSP detection DPC runner sequence DPC channel POSP detection Lap 1.-Channel 1 490P1 ― Lap 2.-Channel 1 490P1-No imaging Nadir imaging Lap 1.-Channel 2 490P2 Nadir imaging Lap 2.-Channel 2 490P2-No imaging Lap 1.-Channel 3 490P3 ― Lap 2.-Channel 3 490P3-No imaging Nadir imaging Lap 1.-Channel 4 565 Nadir imaging Lap 2.-Channel 4 565-No imaging Lap 1.-Channel 5 670P1 ― Lap 2.-Channel 5 670P1-No imaging Nadir imaging Lap 1.-Channel 6 670P2 Nadir imaging Lap 2.-Channel 6 670P2-No imaging Lap 1.-Channel 7 670P3 ― Lap 2.-Channel 7 670P3-No imaging Nadir imaging Lap 1.-Channel 8 Dark Nadir imaging Lap 2.-Channel 8 Dark-No imaging Lap 1.-Channel 9 763 ― Lap 2.-Channel 9 763-No imaging Nadir imaging Lap 1.-Channel 10 765 Nadir imaging Lap 2.-Channel 10 765-No imaging Lap 1.-Channel 11 865P1 ― Lap 2.-Channel 11 865P1-No imaging Nadir imaging Lap 1.-Channel 12 865P2 Nadir imaging Lap 2.-Channel 12 865P2-No imaging Lap 1.-Channel 13 865P3 ― Lap 2.-Channel 13 865P3-No imaging Nadir imaging Lap 1.-Channel 14 443 Nadir imaging Lap 2.-Channel 14 443-No imaging Lap 1.-Channel 15 910 ― Lap 2.-Channel 15 910-No imaging Nadir imaging
Table 6. In-orbit requirements and test results of DPC
View tableView in ArticleTable 6. In-orbit requirements and test results of DPC
Items Specification requirements Test results Spectral range/nm 433～453, 480～500 (P), 555～575, 660～680 (P), 758～768, 745～785, 845～885 (P), 900～920 442.50 ± 21, 489.90 ± 22.4 (P), 563.10 ± 21.6, 669.45 ± 20.6 (P), 763.25 ± 10.23, 763 ± 41, 863.50 ± 35.2 (P), 909.40 ± 21.8 SNR ≥ 500 568.3～717.9 Polarimetric
error/%
≤ 2 ≤ 0.62 Radiometric
calibration/%
≤ 5 2.3～4.7 FOV/(°) 50 ± 0.5～50 ± 0.5 ±50.07 Spatial resolution at nadir/km < 3.5 ≤ 3.32
Table 7. In-orbit requirements and test results of POSP
View tableView in ArticleTable 7. In-orbit requirements and test results of POSP
Items Specification requirements Test results Spectral range/nm 370 ± 3～390 ± 3, 400 ± 3～420 ± 3, 433 ± 3～453 ± 3,
480 ± 3～500 ± 3, 660 ± 5～680 ± 5, 845 ± 5～885 ± 5
1360 ± 5～1400 ± 5, 1580 ± 5～1640 ± 5,
2210 ± 10～2290 ± 10
380 ± 19, 409.5 ± 19, 442 ± 19
489.5 ± 20, 669.5 ± 19, 865.25 ± 19, 1378.5 ± 41, 1612 ± 62, 2256 ± 70
SNR > 100 (@380, 410, 1380, 2250 nm)
> 240 (@443, 490, 670, 865, 1610 nm)
≥ 594.73 (@380, 410, 1380, 2250 nm)
≥ 1346.07 (@443, 490, 670, 865, 1610 nm)
Polarimetric error ≤ 0.005@P ≤ 0.3 ≤ 0.004@P ≤ 0.3 Radiometric calibration error/% ≤ 5 ≤ 4.42 FOV/(°) ≥ ±50° ≥ ±53.6 Spatial resolution at nadir/km ≤ 10 ≤ 6.41
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Miaomiao ZHANG, Yuan WEN, Sifeng ZHU, Yanqing XIE, Yingjie LI, Yunduan LI, Jin HONG, Zhenhai LIU, Donggen LUO, Maoxin SONG, Yi WANG. Engineering design and in-orbit performance evaluation of polarization crossfire suite onboard the hyperspectral observation satellite[J]. Journal of Atmospheric and Environmental Optics, 2023, 18(4): 295
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Received: Mar. 17, 2023
Accepted: --
Published Online: Aug. 24, 2023
The Author Email: HONG Jin (hongjin@aiofm.ac.cn)
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