Fig. 1. Attenuation curves of different models

Fig. 2. Flow chart of Monte Carlo simulation

Fig. 3. Transmission process of light in medium

Fig. 4. Variation of polarization degree with transmission distances under different rainfalls

Fig. 5. Variation of polarization degree with rainfalls under different polarization states

Fig. 6. Variation of polarization degree with rainfalls at different wavelengths