Proceedings of the Korean Society of Surveying, Geodesy, Photogrammetry, and Cartography Conference (한국측량학회:학술대회논문집)

Korean Society of Surveying, Geodesy, Photogrammetry and Cartography (한국측량학회)
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KOMPSAT-2 Direct Sensor Modeling and Geometric Accuracy Analysis

다목적실용위성2호 센서모델링 및 기하정확도 분석

  • 서두천 (한국항공우주연구원 우주응용센터 위성정보처리팀) ;
  • 김문규 (Satreci 지상시스템 사업부) ;
  • 이동한 (한국항공우주연구원 우주응용센터 위성정보처리팀) ;
  • 송정헌 (한국항공우주연구원 우주응용센터 위성정보처리팀) ;
  • 박수영 (한국항공우주연구원 우주응용센터 위성정보처리팀) ;
  • 임효숙 (한국항공우주연구원 우주응용센터 위성정보처리팀) ;
  • 안기원 (경상대학교 토목공학과) ;
  • 이효성 (순천대학교 토목공학과)
  • Published : 2007.04.19
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Abstract

The horizontal geo-location accuracy of KOMPSAT-2, without GCPs (Ground Control Points) is 80 meters CE90 for monoscopic image of up to 26 degrees off-nadir angle, after processing including POD (Precise Orbit Determination), PAD(Precise Attitude Determination) and AOCS (Attitude and Orbit Control Subsystem) sensor calibration. In case of multiple stereo images, without GCPs, the vertical geometric accuracy is less than 22.4 meters LE 90 and the horizontal geometric accuracy is less than 25.4 meters. There are two types of sensor model for KOMPSAT-2, direct sensor model and Rational Function Model (RFM). In general, a sensor model relates object coordinates to image coordinates The major objective of this investigation is to check and verify the geometrical performance when initial KOMPSAT-2 images are employed and briefly introduce the sensor model of KOMPSAT-2.

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