Elevation Correction Method for Earth Observation of Geostationary Satellites

Along with the great improvement of the image spatial resolution of the geostationary satellite, elevation correction of geostationary satellite is increasingly attractive. According to the projective mode and imaging pattern of new generation geostationary satellites, in order to address the non-convergent problem caused by traditional iterative searching algorithm, a new algorithm which searches the occlusive points directly on the observing vectors is proposed. Then, a geostationary satellite elevation correction strategy which combines the strong stability of direct searching algorithm and high computational efficiency of iterative searching algorithm is developed. The simulative experiments show that the proposed strategy is valid.