Journal of the Korea Institute of Military Science and Technology (한국군사과학기술학회지)

The Korea Institute of Military Science and Technology (한국군사과학기술학회)
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Method of Analyzing the ISAR image of Electrically Large Objects Partially Coated with RAM Using PO Technique

PO 기법을 이용한 부분 코팅된 전기적 대형물체의 ISAR 해석 방법

  • Noh, Yeong-Hoon (Department of Electric and Electronic Engineering, Yonsei University) ;
  • Kim, Woobin (Department of Electric and Electronic Engineering, Yonsei University) ;
  • Yook, Jong-Gwan (Department of Electric and Electronic Engineering, Yonsei University) ;
  • Hong, Ic-Pyo (Department of Information and Communication Engineering, Kongju National University) ;
  • Kim, Yoon-Jae (Aerospace Technology Research Institute, Agency for Defense Development) ;
  • Oh, Wonseok (Aerospace Technology Research Institute, Agency for Defense Development)
  • 노영훈 (연세대학교 전기전자공학과) ;
  • 김우빈 (연세대학교 전기전자공학과) ;
  • 육종관 (연세대학교 전기전자공학과) ;
  • 홍익표 (공주대학교 정보통신공학부) ;
  • 김윤재 (국방과학연구소 항공기술연구원) ;
  • 오원석 (국방과학연구소 항공기술연구원)
  • Received : 2020.04.17
  • Accepted : 2020.06.26
  • Published : 2020.08.05
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Abstract

This paper presents an asymptotic analysis method using the PO(physical optics) approximation technique to analyze the scattering contribution of an electrically large object partially coated with a radar absorbing material(RAM). By using the feature of the PO technique that can calculate the equivalent current value for each mesh independently, instead of analyzing the entire structure, scattering analysis was performed only by calculating the current on the area where the RAM coating is applied. By the numerical examples, the accuracy and the computation time of the proposed method were verified, and the computational efficiency of inverse synthetic aperture radar(ISAR) of the electrically large objects that require enormous resources is improved.

Keywords

References

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