Fig. 1. Comparison of two scattering phase functions and scattering intensities. (a) Particle radius: 0.1 μm; (b) Particle radius: 0.4 μm; (c) Particle radius: 0.8 μm; (d) Particle radius: 2 μm; (e) particle radius: 6 μm; (f) Particle radius: 10 μm

Fig. 2. Comparison of two sample methods of scattering phase functions

Fig. 3. Emission and receive model in dust environment

Fig. 4. Semianalytic sensing geometric model

Fig. 5. Dust environment experiment. (a) Laboratory layout; (b) Experimental scene

Fig. 6. Scattering phase functions with different relative humidity conditions

Fig. 7. Normalized simulation echo powers with different relative humidity conditions

Fig. 8. Normalized simulation echo powers changing with dust concentrations in different relative humidity conditions

Fig. 9. Normalized simulation echo powers changing with dust concentrations. (a) T-matrix; (b) H-G scattering phase function

Fig. 10. Comparison of results of two simulation methods and experiment