Restoration of scanning speed deviation of the large aperture interference imaging spectrometer

The large aperture interference imaging spectrometer obtains the interference sequence of objects by field scanning and data reorganization. The ideal field displacement between the frames is 1 pixel. If scanning speed is faster or slower, the interference sequence obtained according to the normal reorganization algorithm is not derived from the same object, resulting in errors to image and spectrum. With the rule of image points in the data cube, the image point trajectory tracking method is proposed, which can accurately extract the interference sequence signals of the same object and correct the transverse dimension deformation. The motion error correction effect is evaluated by using the projection image of the interference data cube.