Bulletin of the Korean Space Science Society (한국우주과학회:학술대회논문집(한국우주과학회보))

The Korean Space Science Society (한국우주과학회)
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Alignment estimation performance of Multiple Design Configuration Optimization for three optical systems

  • Oh, Eun-Song (Space Optics Laboratory, Dept. of Astronomy, Yonsei University) ;
  • Kim, Seong-Hui (Korea Aerospace Research Institute) ;
  • Kim, Yun-Jong (Dept. of Science of Measurement, University of Science & Technology) ;
  • Lee, Han-Shin (McDonald Observatory, The University of Texas at Austin) ;
  • Kim, Sug-Whan (Space Optics Laboratory, Dept. of Astronomy, Yonsei University)
  • Published : 2011.04.15
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Abstract

In this study, we investigated alignment state estimation performances of the three methods i.e. merit function regression (MFR), differential wavefront sampling (DWS) and Multiple Design Configuration Optimization (MDCO). The three target optical systems are 1) a two-mirror Cassegrain system for deep space Earth observation, 2) intermediate size three-mirror anastigmat for Earth ocean monitoring, and 3) extremely large segmented optical system for astronomical observation. We ran alignment state estimation simulation for several alignment perturbation cases including 1mm to 10mm in decenter and from 0.1 to 1 degree in tilt perturbation error for the two-mirror Cassegrain system. In general, we note that MDCO shows more competitive estimation performance than MFR and DWS. The computational concept, case definition and the simulation results are discussed with implications to future works.

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