Nonlinear Interpolation for Navigation of Satellite Image

Based on the analysis of grid data for navigation from GMS-4,it is discovered that the vari bility of pixel resolution between two grid points at the same latitude may be used as a constant. The resolution of each pixel can be computed according to the principle of geometrical progression. The geographical position of the pixel, in turn, can be determined. A method of nonlinear interpolation designed from this result has more advantage than the linear interpolation.

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