Modeling and Correction of Pointing Errors in Gimbals-Type Optical Communication Terminals on Motion Platforms

In free-space optical (FSO) communication, high-precision pointing is a critical technology required for rapid acquisition to reduce link establishment time and increase communication time. FSO on motion platform necessary expand the area promote of global network. However, accuracy an terminal low due numerous error sources coupling. This paper evaluates proposes model avoid problems resulting from proposed was designed improve gimbals-type (GOCT) platform. The effectiveness verified by tracking star experiments. modified residual point 94.8 μrad compared 1324.2 without correction. Additionally, 140.2 existing model. actual open-loop reduced 150.4 101.3 Thus, GOCT significantly improved after correction