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

The Korea Institute of Military Science and Technology (한국군사과학기술학회)
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A Study on Spotlight SAR Image Formation by using Motion Measurement Results of CDGPS

CDGPS의 요동 측정 결과를 이용한 Spotlight SAR 영상 형성에 관한 연구

  • Hwang, Jeonghun (The 3rd Research and Development Institute, Agency for Defense Development) ;
  • Ko, Young-Chang (The 3rd Research and Development Institute, Agency for Defense Development) ;
  • Kim, So-Yeon (The 3rd Research and Development Institute, Agency for Defense Development) ;
  • Kwon, Kyoung-Il (The 3rd Research and Development Institute, Agency for Defense Development) ;
  • Yoon, Sang-Ho (The 3rd Research and Development Institute, Agency for Defense Development) ;
  • Kim, Hyung-Suk (The 3rd Research and Development Institute, Agency for Defense Development) ;
  • Shin, Hyun-Ik (The 3rd Research and Development Institute, Agency for Defense Development)
  • 황정훈 (국방과학연구소 제3기술연구본부) ;
  • 고영창 (국방과학연구소 제3기술연구본부) ;
  • 김소연 (국방과학연구소 제3기술연구본부) ;
  • 권경일 (국방과학연구소 제3기술연구본부) ;
  • 윤상호 (국방과학연구소 제3기술연구본부) ;
  • 김형석 (국방과학연구소 제3기술연구본부) ;
  • 신현익 (국방과학연구소 제3기술연구본부)
  • Received : 2017.08.10
  • Accepted : 2018.02.09
  • Published : 2018.04.05
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Abstract

To develop and evaluate the real-time SAR(Synthetic Aperture Radar) motion measurement system, true antenna phase center(APC) positions during SAT(Synthetic Aperture Time) are needed. In this paper, CDGPS(Carrier phase Differential Global Positioning System) post processing method is proposed to get the true APC position for spotlight SAR image formation. The CDGPS position is smoothed to remove high frequency noise which exists inherently in the carrier phase measurement. This paper shows smoothed CDGPS data is enough to provide the true APC for high-quality SAR image formation through motion measurement result, phase error estimation and IRF(Impulse Response Function) analysis.

Keywords

References

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