The Journal of Korean Institute of Electromagnetic Engineering and Science (한국전자파학회논문지)

The Korean Institute of Electromagnetic Engineering and Science (한국전자파학회)
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RCS Prediction of Complex Targets

복합구조물의 RCS 예측

  • 석성하 (포항공과대학교 전자전기공학과) ;
  • 서태일 (포항공과대학교 전자전기공학과) ;
  • 전상미 (포항공과대학교 전자전기공학과) ;
  • 박해상 (포항공과대학교 전자전기공학과) ;
  • 김효태 (포항공과대학교 전자전기공학과)
  • Published : 2000.09.01
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Abstract

A summary of the development and verifications of a computer code being developed at Pohang University of Science and Technology (POSTECH) for calculating the radar cross section(RCS) of complex targets is presented. The complex targets are modeled in terms of patches and wedges. This code utilizes physical optics, physical theory of diffraction and shooting and bouncing rays method to calculate the RCS of complex targets. For the verification of the RCS prediction code, a simple-shaped scale-model was manufactured and the RCS was measured at the POSTECH compact range. The obtained RCS was processed to give frequency-domain RCS patterns and ISAR images. The predicted RCS shows good agreement with measured one. The RCS prediction methods presented here are applicable to stealth design and target recognition.

복합구조물의 레이다 단면적 예측을 위하여 포항공과대학교에서 개발중인 컴퓨터 코드에 관한 개발과정과 검증에 관한 내용을 기술하였다. 복합구조물은 평판과 모서리로 모델링 되었으며 예측을 위한 컴퓨터 코드는 물리광학, 물리광학적 회절이론과 SBR 기법을 이용한다. 축소 모형을 제작하여 포항공대 단축거리 측정장치로 RCS를 측정하였다. 예측/측정된 결과는 RCS 패턴 및 ISAR 영상을 통하여 비교 검토되었으며 그 결과는 상당히 일치하였고 복합구조물의 국부 산란현상을 잘 설명한다. 이러한 예측 방법은 스텔스 설계와 표현인식기법연수에 직접 적용될 수 있다.

Keywords

References

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