Fig. 1. Schematic diagrams of optical synthetic aperture imaging principle

Fig. 2. Schematic diagram of SR

Fig. 3. Structure of double aperture

Fig. 4. SR of double-aperture system varying with single aberration of sub-aperture 2. (a) No aberration in sub-aperture 1; (b) sub-aperture 1 contains a piston aberration of 0.5λ; (c) sub-aperture 1 contains a tilt aberration of 0.5λ

Fig. 5. Relationship between SR of double-aperture system and RMS of co-phase aberration. (a) Piston aberration; (b) tilt aberration

Fig. 6. Structure of four-aperture

Fig. 7. Relationship between SR of four-aperture system and RMS of co-phase aberration. (a) Piston aberration; (b) tilt aberration

Fig. 8. Structure and PSF of four-aperture optic system. (a) Structure; (b) PSF

Fig. 9. Effect of sinusoidal vibration on TISR caused by simultaneous piston aberration of four apertures. (a) Amplitude variation;(b) frequency variation; (c) phase change

Fig. 10. Effect of sinusoidal vibration on TISR caused by simultaneous tilt aberration of four apertures. (a) Amplitude variation;(b) frequency variation; (c) phase change

Fig. 11. Effect of sinusoidal vibration coupling on TISR caused by simultaneous piston and tilt aberration of four apertures.(a) Amplitude variation; (b) frequency variation; (c) phase change