Polarization reflectance retrieval method based on atmospheric radiative transfer model
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School of Instrumentation Science and Opto-electronics Engineering,Beihang University,School of Instrumentation Science and Opto-electronics Engineering,Beihang University,School of Instrumentation Science and Opto-electronics Engineering,Beihang University

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    Abstract:

    Current polarization detection is mainly based on the polarization state of at-sensor radiance, w hich can enhance objects of interest or restrain background disturbance qualitatively. There is only empirical linear method for polarized reflectance retrieval of ground objects, w hich is inadequate in terms of adaptability and real-time capability under varied observation conditions. A polarized reflectance retrieval method based on polarized atmospheric radiative transfer model is hereby proposed. A lookup table ( LUT) is established by using the radiative transfer model to illustrate the relationship among polarized reflectance, observation condition and at-sensor polarization state. Polarized reflectance can then be retrieved using the LUT combined w ith numerical calculation. Results show that the retrieval accuracy of polarized reflectance of typical ground objects can be up to 90%.

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ZHAO Hui-Jie, XING Jian, JIA Guo-Rui. Polarization reflectance retrieval method based on atmospheric radiative transfer model[J]. Journal of Infrared and Millimeter Waves,2018,37(4):416~420

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History
  • Received:January 03,2018
  • Revised:May 23,2018
  • Adopted:February 08,2018
  • Online: August 30,2018
  • Published: