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

  • 제28권3호
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  • Pages.186-194
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  • 2017
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  • 1226-3133(pISSN)
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  • 2288-226X(eISSN)
한국전자파학회 (The Korean Institute of Electromagnetic Engineering and Science)
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다중대역 SweepSAR 운용 모드의 시스템 성능 분석

System Performance Analysis for Multi-Band SweepSAR Operating Mode

  • 윤성식 (한국항공대학교 항공전자정보공학과) ;
  • 이재욱 (한국항공대학교 항공전자정보공학과) ;
  • 이택경 (한국항공대학교 항공전자정보공학과) ;
  • 유상범 (한국항공우주연구원 탑재체전자팀) ;
  • 이현철 (한국항공우주연구원 탑재체전자팀) ;
  • 강은수 (한국항공우주연구원 탑재체전자팀) ;
  • 이상규 (한국항공우주연구원 탑재체전자팀)
  • Yoon, Seong-Sik (Department of Electronics and Information Engineering, Korea Aerospace University) ;
  • Lee, Jae-Wook (Department of Electronics and Information Engineering, Korea Aerospace University) ;
  • Lee, Taek-kyung (Department of Electronics and Information Engineering, Korea Aerospace University) ;
  • Ryu, Sang-Burm (Payload Electronics Team, Korea Aerospace Research Institute) ;
  • Lee, Hyeon-Cheol (Payload Electronics Team, Korea Aerospace Research Institute) ;
  • Kang, Eun-Su (Payload Electronics Team, Korea Aerospace Research Institute) ;
  • Lee, Sang-Gyu (Payload Electronics Team, Korea Aerospace Research Institute)
  • 투고 : 2016.11.14
  • 심사 : 2017.03.03
  • 발행 : 2017.03.31
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초록

본 논문에서는 고해상도 광역관측을 위한 위성 영상레이다(Synthetic Aperture Radar)의 시스템 주요 성능을 분석하였다. 배열 급전을 이용하는 반사판 안테나의 패턴을 활용하였으며, 기존의 광역관측 모드인 ScanSAR 모드와 SweepSAR 모드에 대해서 비교 분석하였다. SweepSAR 모드는 넓은 범위에 빔을 송신하고, SCORE(SCan On REceive)를 기반으로 순차적으로 빔포밍을 통해 반향신호를 수신하는 고해상도 광역관측 모드이다. 본 논문에서는 SweepSAR 모드로 동작하는 위성의 동작원리 및 특징을 분석하고, 시스템 성능 파라미터를 시뮬레이션 해석하였다. 또한, 영상의 활용도를 증대시키기 위해서 다중 주파수 대역(C-band, X-band)에 대하여 성능 분석을 수행하였다.

In this paper, we analyze the main performance of satellite's Synthetic Aperture Radar system for high resolution and wide swath. We have used the radiation pattern of reflector antenna with array feed and comparison between the conventional ScanSAR mode and SweepSAR mode has been carried out. The SweepSAR mode is a high-resolution wide-swath mode that transmits beams over a wide range and receives echo signals through sequential beamforming based on SCORE(SCan On REceive). In this paper, we analyzed the operating principle and characteristics of satellite's SweepSAR mode and simulate system performances. In addition, in order to increase the utilization of image, performances analysis for multiple frequency bands(C-band, X-band) has been considered.

키워드

참고문헌

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