Journal of electromagnetic engineering and science

  • 제12권1호
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  • Pages.115-121
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  • 2012
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  • 2671-7255(pISSN)
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  • 2671-7263(eISSN)
한국전자파학회 (The Korean Institute of Electromagnetic Engineering and Science)
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Development of a Scattering Model for Soybean Fields and Verification with Scatterometer and SAR Data at X-Band

  • Kweon, Soon-Koo (Dept. of Electronic Information & Communication Engineering, Hongik University) ;
  • Hwang, Ji-Hwan (Dept. of Electronic Information & Communication Engineering, Hongik University) ;
  • Oh, Yi-Sok (Dept. of Electronic Information & Communication Engineering, Hongik University)
  • 투고 : 2011.09.26
  • 심사 : 2012.02.08
  • 발행 : 2012.03.31
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초록

This paper presents a scattering model and measurements of backscattering coefficients for soybean fields. The polarimetric radar backscatters of a soybean field were measured using the ground-based X-band polarimetric scatterometer in an angular range from $20^{\circ}$ to $60^{\circ}$. The backscattering coefficients were also obtained using the COSMO-SkyMed (Spotlight mode, HH-polarization) from July to October 2010. The backscattering coefficients of the soybean field were computed using the 1st-order radiative transfer model (RTM) with field-measured input parameters. The soybean layer is composed of the stems, branches, leaves, and soybean pods. The stems, branches, and pods are modeled with lossy dielectric cylinders, the leaves are modeled with lossy dielectric disks. The estimated backscattering coefficients agree quite well with the field-measured radar backscattering coefficients.

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참고문헌

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  2. A Modified Water-Cloud Model With Leaf Angle Parameters for Microwave Backscattering From Agricultural Fields vol.53, pp.5, 2015, https://doi.org/10.1109/TGRS.2014.2364914
  3. Analysis of Backscattering Coefficients of Corn Fields Using the First-Order Vector Radiative Transfer Technique vol.25, pp.4, 2014, https://doi.org/10.5515/KJKIEES.2014.25.4.476