1. 电磁场理论 （第四章） Electromagnetic Field Theory ( Ch.4)
盛新庆 （Sheng Xin-Qing）
电磁仿真中心
（Center for Electromagnetic Simulation）
北京理工大学信息科学技术学院
（School of Information Science and Technology，Beijing Institute of Technology）
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2. Scattering of EM Wave Scattering Determined Targets
Random Targets
Targets in free space
Targets in layered medium
Random Surface
Random volume targets
Small rough random surface
Regular Targets
Irregular Targets
Smooth random surface
Rough random surface
Cylinder 2D
Sphere 3D
Numerical Methods

3. Scattering by an 2D Cylinder

4. Scattering by an 2D Cylinder

5. Scattering by an 2D Cylinder

6. Scattering by an 2D Cylinder

7. Scattering by an 2D Cylinder

8. Scattering by an 2D Cylinder
Echo Width

9. Scattering by an 2D Cylinder

10. Scattering by an 2D Cylinder。

11. Scattering by Conducting Sphere
The scattering field of a plane EM wave by a conducting sphere can be analytically expressed.
Radar Cross Section (RCS)
Monostatic RCS, Backscatter RCS, Bistatic RCS
Vertical Polarization (VV-Pol), Horizontal Pol. (HH-Pol), Cross Polarization

12. Scattering by Conducting Sphere

13. Analytical Approcah for Scattering by Regular Targets
Choose a suitable coordinate system, construct a complete eigenfunction system.
Express the incident field and scattering field with unknown coefficients with the eigenfunctions, then determine the unknown coefficients according to the boundary condition
How to express the incident field with the eigenfunction?

14. Transformation from plane wave to cylindrical wave

15. Transformation of cylindrical wave at cylindrical coordinates with different origion

16. Transformation of cylindrical wave at cylindrical coordinates with different origins

17. Scattering by Irregular Targets
Full Wave Numerical Method

18. Mechanism of Scattering

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