Yipeng Zhang, Xiuqing Hu, Dekui Yin, Mingjian Gu. Onboard Polarization Calibration Technique of Multi-Angle Polarization Imager Based on Sun Glint from Ocean[J]. Acta Optica Sinica, 2020, 40(15): 1528002
- Acta Optica Sinica
- Vol. 40, Issue 15, 1528002 (2020)
Fig. 1. Schematic of MAPI
Fig. 2. Multi-angle imaging principle of MAPI
Fig. 3. Relationship between incident angle and DOLP
Fig. 4. Micro-plane model
Fig. 5. Effect of wind speed on reflectance of sun glint
Fig. 6. Relationship between ρTOA and ξ
Fig. 7. Relationship between
Fig. 8. Comparison of PTOA and Pre
Fig. 9. Comparison between observed DOLP and retrieved DOLP with different β. (a) β<6°;(b) β<7°
Fig. 10. DOLP of flare at 865 nm channel. (a) Observed DOLP of POLDER 3;(b) retrieved DOLP
Fig. 11. Comparison between observed DOLP of POLDER 3 and retrieved DOLP at different channels. (a) 865 nm; (b) 670 nm; (c) 490 nm
Fig. 12. DOLP of MAPI at 865 nm channel. (a) Observed DOLP of MAPI;(b) retrieved DOLP
Fig. 13. Comparison between MAPI observed DOLP and retrieved DOLP at different channels. (a) 865 nm; (b) 670 nm; (c) 490 nm
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Table 1. Parameter setting of MAPI channels
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Table 2. Evaluation results of four models
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Table 4. Uncertainty of degree of polarization of three channels
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