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气象:1993,19(9):19-23
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用于地球静止卫星云图象素定位的非线性插值法
(成都高原气象研究所 610072)
Nonlinear Interpolation for Navigation of Satellite Image
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中文摘要: 根据对GMS-4地球静止卫星所发定位网格数据的分析,发现同一纬线上两定位格点间象素分辨率的变化率基本保持不变。可以利用等比级数的原理计算象素分辨率,从而确定象素的地理位置。据此设计的非线性插值方法明显优于线性插值法。
Abstract: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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引用文本:
钟晓平,1993.用于地球静止卫星云图象素定位的非线性插值法[J].气象,19(9):19-23.
,1993.Nonlinear Interpolation for Navigation of Satellite Image[J].Meteor Mon,19(9):19-23.