Fig. 1. Implementation scheme of laser local oscillator with wide spectrum considering polarization and spectral range

Fig. 2. Detection principle schematic diagram of two receiving units

Fig. 3. Structure diagrams of space-based telescope schematic. (a) Folding form; (b) unfolding form

Fig. 4. Structure layout of synthetic aperture telescope. (a) Layout of synthetic aperture telescope; (b) forming receiving sampling points in UV domain

Fig. 5. Submirror structure layout. (a) Schematic diagram of submirror detector channel layout; (b) receiving sampling points in UV domain formed by detectors spaced 1 mm apart

Fig. 6. Receiving sampling points in UV domain by array center misalignment

Fig. 7. Synthetic aperture diffractive mirror

Fig. 8. Aperture traverse display when aperture is 0. 207 m, F number is 2. (a) Aperture traverse; (b) aperture traverse projection

Fig. 9. Aperture traverse projection after compensation when aperture is 0. 207 m, F number is 2

Fig. 10. Inverse imaging simulation results. (a) Initial brightness temperature diagram of point radiation source; (b) inversion of brightness temperature map by point radiation source, when minimum baseline of the submirror center is 0.207 m; (c) inversion of brightness temperature map by point radiation source, when minimum baseline of the submirror center is 1 mm by 3×3 array; (d) inversion of brightness temperature map by point radiation source, when minimum baseline of the submirror center is 1 mm by array center misalignment