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18 December 2019 Wavelet-based denoising analysis for polarized scanning atmospheric corrector
Xuefeng Lei, Fei Tao, Zhenhai Liu, Congfei Li, Shuangshuang Zhu, Jin Hong
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Proceedings Volume 11338, AOPC 2019: Optical Sensing and Imaging Technology; 1133816 (2019) https://doi.org/10.1117/12.2543301
Event: Applied Optics and Photonics China (AOPC2019), 2019, Beijing, China
Abstract
To obtain high accuracy polarization observation information is highly expecting in aerosol parameter retrieval and atmosphere environment research. In this paper, we described a space-borne multispectral polarized scanning atmospheric corrector (PSAC), which can provide extremely high polarimetric accuracy. And we use wavelet-based denoising method to improve the stability of PSAC measurement results by reducing internal noise. The result shows that the STD of DOLP difference between PSAC measurement value and theoretical value is significantly reduced, reached 5%~10% in the requirement DOLP difference accuracy 0.5%, the proposed threshold function can increase the evaluation accuracy stability of instrument polarization and reduce the uncertainty, also, the measurement results of PSAC inflight improved as well.
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Xuefeng Lei, Fei Tao, Zhenhai Liu, Congfei Li, Shuangshuang Zhu, and Jin Hong "Wavelet-based denoising analysis for polarized scanning atmospheric corrector", Proc. SPIE 11338, AOPC 2019: Optical Sensing and Imaging Technology, 1133816 (18 December 2019); https://doi.org/10.1117/12.2543301
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KEYWORDS
Polarization
Atmospheric particles
Atmospheric optics
Denoising
Aerosols
Wavelets
Atmospheric sciences
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