Fig. 1. (a) Multibeam patterns and (b) splicing beam pattern plotted in contour

Fig. 2. Flow chart of fast measurement method

Fig. 3. Simulation measurement diagram

Fig. 4. 7 beam Q-band feed configuration diagram

Fig. 5. Input deformation simulation under three typical conditions. (a) Gravitational deformation at 30°; (b) gravitational deformation at 70°; (c) thermal deformation at a given time

Fig. 6. Calculated patterns under three typical conditions. (a) Gravitational deformation at 30°; (b) gravitational deformation at 70°; (c) thermal deformation at a given time

Fig. 7. Splicing patterns under three typical conditions. (a) Gravitational deformation at 30°; (b) gravitational deformation at 70°; (c) thermal deformation at a given time

Fig. 8. (a) Retrieval deformation and (b) residual deformation without noise under three typical conditions

Fig. 9. (a) Retrieval deformation and (b) residual deformation with signal-to-noise of 150∶1 under three typical conditions