Fig. 1. Interior view of microwave characteristic measurement and simulation imaging science experiment platform

Fig. 2. Diagram of measurement flow

Fig. 3. Measuring schematic diagrams of reed and zizania. (a) Reed scene; (b) zizania scene; (c) structure diagram of reed scene; (d) structure diagram of zizania scene

Fig. 4. Imaging of reed at 45° incidence angle and -135° azimuth. (a) C band; (b) X band; (c) Ku band

Fig. 5. Imaging of zizania at 45° incidence angle and 0° azimuth. (a) C band; (b) X band; (c) Ku band

Fig. 6. Comparison of RCS of the medal ball between the measurement result by LAMP and the prediction by Mie series^[16]

Fig. 7. Measurement results of reed RCS at different incident angles and 0° azimuth angle in different bands. (a) C band (5.3 GHz); (b) X band (9.6 GHz); (c) Ku band (15 GHz)

Fig. 8. RCS scattering curves of reed at 25°‒55° incident angle and 0° azimuth angle. (a) 25° incident angle; (b) 35° incident angle; (c) 45° incident angle; (d) 55° incident angle

Fig. 9. Measurement results of zizania RCS at different incident angles and 0° azimuth angle in different bands.(a) C band (5.3 GHz); (b) X band (9.6 GHz); (c) Ku band (15 GHz)

Fig. 10. RCS scattering curves of zizania at 25°‒55° incident angle and 0° azimuth angle. (a) 25° incident angle; (b) 35° incident angle; (c) 45° incident angle; (d) 55° incident angle

Fig. 11. RCS images of reed and zizania at 20° incident angle and 0° azimuth angle from 9 to 17 GHz. (a) Logarithmic RCS_VH; (b) scatter plots of ratio of logarithmic RCS_HH to logarithmic RCS_VV with logarithmic RCS_VH

Fig. 12. Two dimensional RCS scatter plots of reed and zizania at 25° incident angle and 0° azimuth angle from 7.8 to 17 GHz. (a) RCS scatter plots under VV and VH; (b) scatter plots of ratio of logarithmic RCS_VV to logarithmic RCS_VH with logarithmic RCS_VH

Fig. 13. Two dimensional RCS scatter plots of reed and zizania with incident angle of 55° and azimuth angle of 0° in frequency of 7~17 GHz. (a) RCS scatter plots under HH and VV; (b) scatter plots of ratio of logarithmic RCS_HH to logarithmic RCS_HV with logarithmic RCS_HH