Accuracy Analysis of the Orbit Modeling with Various GCP Configurations and Unknown Parameter Sets

기준점 위치와 미지수 조합에 따른 궤도모델링의 정확도 분석

  • 김동욱 (인하대학교 영상공학연구실) ;
  • 김현숙 (인하대학교 영상공학연구실) ;
  • 김태정 (인하대학교 영상공학연구실)
  • Published : 2008.04.30


In this paper, we analyzed the accuracy of orbit modeling with various control point configurations and adjustment unknown parameter sets. We used 152 GCP points acquired from GPS surveying, which were distributed from Choon-chun to Nha-ju along 420km in distance. For orbit modeling, seven adjustment parameter sets were chosen to include parameters for satellite position, velocity and attitude angles at different degree of freedom. Firstly we determined the location of model point in seven configurations. Secondly we estimated model parameters for each parameter set and for each GCP configurations. Finally we applied the model to reference check points and analyzed its accuracy. We were able to find the unknown parameter set that produce best orbit modeling performance regardless of the configuration of model points.


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