Pushbroom imaging is an important way for aerial remote sensing;The changes about the speed

attitude and attitude variation of vehicle will affect the image quality of pushbroom imager

so the error budget and synthesis of these factors are important in developing pushbroom imager.Using the light vector and optic axis revolution alternation method in this

to establishe a mathematical model of image motion for this system

which consider the drift angle.Analysing image motion compensation error by apply Mont Carlo method with the error budget and synthesis of these factors at last.