Fig. 1. Basic structure of an interferometric star sensor

Fig. 2. Multiple sets of image points simultaneously appeared

Fig. 3. Two sets of image points overlapped

Fig. 4. Interference fringes under different grating spacing

Fig. 5. Interference fringes under different wavelengths of incident light

Fig. 6. Images under different grating periods

Fig. 7. Relation between the simulation fringe width and grating period

Fig. 8. Mismatch error between system aperture and Moiré fringe width

Fig. 9. Effect of aperture deviation on the phase extraction of fine positioning

Fig. 10. Relation between the reference talbot distance imaging and incident light wavelength

Fig. 11. Variation pattern of the image point intensity