Fig. 1. Schematic diagram of the Michelson interferometer

Fig. 2. Rectangular aperture. (a) Tilt of the moving mirror; (b) rectangular distribution

Fig. 3. Circular aperture. (a) Tilt of the moving mirror; (b) aperture section

Fig. 4. Relationship between the light intensity and the tilt of the moving mirror

Fig. 5. Variation curve of the modulation degree. (a) Variation curve of the modulation degree with offset; (b) variation curve of the modulation degree with tilt angle

Fig. 6. Variation curve of the tilt angle

Fig. 7. Interferograms with no error and sinusoidal tilt error

Fig. 8. Spectra with no error and sinusoidal tilt error

Fig. 9. Interferograms with no error and random tilt error

Fig. 10. Spectra with no error and random tilt error