基于仿射变换的有理函数模型精化研究

Refinement of Rational Functional Model Based on Affine Transformation

针对“天绘一号”三线阵1B级卫星影像产品，在区域网平差结果的基础上，结合改正的仿射变换系数和已有的有理函数模型系数，按照严格传感器模型拟合有理函数模型的方法，重新拟合生成一套新的有理函数模型系数。实验结果表明，新生成的有理函数模型可以实现对区域网平差结果的高精度拟合。

Based on the block adjustment result of three-line array 1B level products of TH-1 satellite, and combined with corrected affine transformation parameters and existing rational function model coefficients, a new set of rational function model coefficients is generated by fitting rational function model with strict sensor model. Experiment results show that the new rational function model can achieve high precision fitting of block adjustment results.