Abstract Composite electromagnetic scattering from a two-dimensional (2D) ship-like target on a one-dimensional sea surface is investigated by using the finite-difference time-domain (FDTD) method. A uniaxial perfectly matched layer is adopted for truncation of FDTD lattices. The FDTD updated equations can be used for the total computation domain by choosing the uniaxial parameters properly. To validate the proposed numerical technique, a 2D infinitely long cylinder over the sea surface is taken into account first. The variation of angular distribution of the scattering changing with incident angle is calculated. The results show good agreement with the conventional moment method. Finally, the influence of the incident angle, the polarization, and the size of the ship-like target on the composite scattering coefficient is discussed in detail.
Received: 25 December 2008
Revised: 03 February 2009
Accepted manuscript online:
Fund: Project supported by the National
Natural Science Foundation of China (Grant No 60571058), the
Specialized Research Fund for the Doctoral Program
of Higher Education, China (Grant No 20070701010).
Cite this article:
Li Juan(李娟), Guo Li-Xin(郭立新), Zeng Hao(曾浩), and Han Xu-Biao(韩旭彪) Investigation of composite electromagnetic scattering from ship-like target on the randomly rough sea surface using FDTD method 2009 Chin. Phys. B 18 2757
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