Journal of electromagnetic engineering and science

  • 제18권2호
  • /
  • Pages.136-140
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  • 2018
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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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An Improved Semi-Empirical Model for Radar Backscattering from Rough Sea Surfaces at X-Band

  • Jin, Taekyeong (Department of Electronic and Electrical Engineering, Hongik University) ;
  • Oh, Yisok (Department of Electronic and Electrical Engineering, Hongik University)
  • 투고 : 2018.01.08
  • 심사 : 2018.04.11
  • 발행 : 2018.04.30
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초록

We propose an improved semi-empirical scattering model for X-band radar backscattering from rough sea surfaces. This new model has a wider validity range of wind speeds than does the existing semi-empirical sea spectrum (SESS) model. First, we retrieved the small-roughness parameters from the sea surfaces, which were numerically generated using the Pierson-Moskowitz spectrum and measurement datasets for various wind speeds. Then, we computed the backscattering coefficients of the small-roughness surfaces for various wind speeds using the integral equation method model. Finally, the large-roughness characteristics were taken into account by integrating the small-roughness backscattering coefficients multiplying them with the surface slope probability density function for all possible surface slopes. The new model includes a wind speed range below 3.46 m/s, which was not covered by the existing SESS model. The accuracy of the new model was verified with two measurement datasets for various wind speeds from 0.5 m/s to 14 m/s.

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참고문헌

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피인용 문헌

  1. A Simple Empirical Model for the Radar Backscatters of Skewed Sea Surfaces at X- and Ku-Bands vol.19, pp.3, 2018, https://doi.org/10.26866/jees.2019.19.3.204
  2. Prediction of Electromagnetic Wave Propagation in Troposphere Using Parabolic Equation and Two-Dimensional Refractivity vol.15, pp.3, 2018, https://doi.org/10.1007/s42835-020-00395-9
  3. Performance Evaluation of a Modified SweepSAR Mode for Quad-Pol Application in SAR Systems vol.20, pp.3, 2018, https://doi.org/10.26866/jees.2020.20.3.199