We present an in-depth study on the rigorous imaging model of high-resolution remote sensing satellites. After a brief analysis of the generally established method and process of developing the rigorous imaging model of a spaceborne linear array CCD sensor

three improved rigorous imaging models are proposed for the SPOT 5 HRS / HRG

ALOS PRISM

ZY-3 TLC

and other typical high-resolution remote sensing satellite sensors. We also propose the design of a model validation method based on the bundle block adjustment. The correctness of the rigorous imaging improvement models is verified using three types of satellite images and ancillary data over the Dengfeng remote sensing test field. Experimental results confirm that the three improvement i maging models are correct and applicable for effectively realizing geopositioning and block adjustment of the satellite images.