利用于RFM的天绘一号卫星影像区域网平差

Block Adjustment of TH-1 Satellite Imagery Based on Rational Function Model

本文针对“天绘一号”三线阵1B级卫星影像产品，设计并实现了基于有理函数模型（RFM）的区域网平差方法，并利用实际影像数据，分析和总结了多种控制方案条件下，单景和条带卫星影像区域网平差的精度规律。实验结果表明，有控条件下天绘影像的精度改善明显，控制点分布均匀情况下，定位精度最好。

A block adjustment method based on rational function model （RFM） is designed and achieved in this paper u- sing the 1 B three line array imagery of TH-1 satellite. With real TH-1 images, the accuracy changes of single and strip images u- sing block adjustment method under different control schemes are analyzed and summarized. The result shows that the orientation accuracy of TH-1 images can be obviously improved with control points, and achieve the best level when the control points are u- niformly distributed.