Fig. 1. The basic structure of the interferometer start tacker system

Fig. 2. The spot intensity distribution of a single star on the plane of the detector

Fig. 3. Experimental measurement error varying with turnable angle

Fig. 4. Interval segmentation of the sine function in one period

Fig. 5. The segmentation type of the sine function in one period

Fig. 6. The light intensity distribution of the horizontal fringe

Fig. 7. The light intensity distribution of the oblique fringe

Fig. 8. The light intensity distributions of the horizontal and oblique fringes in the vertical section at different positions

Fig. 9. Optical wedge array unequal division error

Fig. 10. Under segmentation and over segmentation errors

Fig. 11. Nonorthogonal error between the orientation of the Moire fringe and the orientation of the optical wedge array

Fig. 12. Nonorthogonal error between the orientation of the Moire fringe and the orientation of the optical wedge array (subdivision)