Block-adjustment algorithm and Test for Three-line-array Image of highresolution Remote sensing satellite

The geometric positioning process of high-resolution remote sensing satellite images was outlined. The necessity of block adjustment was analyzed. Combined with the imaging characteristics of line sensors, rigorous geometric model, satellite orbit model and interior O Rientation error model were researched on. Then The block math model of high-esolution remote Sensing satellite image was constructed. The elements of exterior orientation and interior orientation were using block solved method. ZY03 satellite images and ALOS PRISM images were tested in this way. The experiment demonstrated that the block adjustment method could improve the geometric accuracy of high-esolution E sensing satellite images.