통합적 광선 추적 기법을 이용한 정지궤도 해양위성의 궤도상 결상 성능 수치모사

Abstract

For understanding Geostationary Ocean Color Imager (GOCI) imaging performance, with the observed raw image data, we constructed the Integrated Ray Tracing model. In this paper, we then used Monte Carlo based ray tracing computation along the whole optical path starting from the Sun to the final detector plane. Trial simulation runs for the GOCI imaging performance were focused onto GSD and MTF. These studies results prove that the that the GOCI image performance is well within the target performance requirement, and that the IRT end-to-end simulation technique introduced here can be applicable for high accuracy simulation of in-orbit performances of GOCI and of other earth observing satellite instruments.