Progress In Electromagnetics Research
ISSN: 1070-4698, E-ISSN: 1559-8985
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By L.-X. Guo, A.-Q. Wang, and J. Ma

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Based on message passing interface (MPI) of the PC Clusters, the parallel method of moment (MOM) is applied to the electromagnetic (EM) scattering from one dimensional (1-D) large scale PEC Gaussian rough surface with two dimensional (2-D) PEC cylinder above it with low grazing incidence. The conjugate gradient method (CGM) for solving MOM matrix equation is parallelized according to the property of MPI in this work. The parallel computational efficiency and validity are shown by several numerical simulations, in which it is proved that the proposed method supplies a novel technique for solving the problem of the composite EM scattering for a 2-D target above 1-D large scale rough surface. Finally, the influences of root mean square (rms) height, the correlation length of the Gaussian surface, the size and the altitude of the cylinder, the polarization on the bistatic scattering coefficient (BSC) for low grazing incidence are also discussed in detail.

L.-X. Guo, A.-Q. Wang, and J. Ma, "Study on EM scattering from 2-d target above 1-d large scale rough surface with low grazing incidence by parallel MoM based on PC clusters," Progress In Electromagnetics Research, Vol. 89, 149-166, 2009.

1. Guo, L. X. and Z. S. Wu, "Application of the extended boundary condition method to electromagnetic scattering from rough dielectric fractal sea surface," Journal of Electromagnetic Waves and Applications, Vol. 18, No. 9, 1219-1234, 2004.

2. Kizilay, A. and S. Makal, "A neural network solution for identification and classification of cylindrical targets above perfectly conducting flat surfaces," Journal of Electromagnetic Waves and Applications, Vol. 21, No. 14, 2147-2156, 2007.

3. Li, J., L. X. Guo, and H. Zeng, "FDTD investigation on bistatic scattering froma target above two-layered rough surfaces using UPML absorbing condition," Progress In Electromagnetics Research, Vol. 88, 197-211, 2008.

4. Li, X. F., Y. J. Xie, and R. Yang, "High-frequency method analysison scattering from homogenous dielectric objects with electricallylarge size in half space," Progress In Electromagnetics Research B, Vol. 1, 177-188, 2008.

5. Li, J., L. X. Guo, and H. Zeng, "FDTD investigation on the electromagnetic scattering from a target above a randomly rough sea surface," Waves in Random and Complex Media, Vol. 18, No. 4, 641-650, 2008.

6. Chen, X. J. and X. W. Shi, "Backscattering of electrically large perfect conducting targets modeled by NURBS surfaces in half-space," Progress In Electromagnetics Research, Vol. 77, 215-224, 2007.

7. Zhang, Y., Y. E. Yang, H. Braunisch, and J. A. Kong, "Electromagnetic wave interaction of conducting object with rough surface by hybrid SPM/MOM technique," Progress In Electromagnetics Research, Vol. 22, 315-335, 1999.

8. Wang, X., C. F. Wang, Y. B. Gan, and L. W. Li, "Electromagnetic scattering froma circular target above or below rough surface," Progress In Electromagnetics Research, Vol. 40, 207-227, 2003.

9. Chiu, T. and K. Sarabandi, "Electromagnetic scattering interaction between a dielectric cylinder and a slightly rough surface," IEEE Trans. Antennas Propag., Vol. 47, No. 5, 902-913, 1999.

10. Harrington, R. F., Filed Computation by Moment Method, IEEE Press, New York, 1993.

11. Pino, M. R., L. Landesa, J. L. Rodriguez, F. Obelleiro, and R. J. Burkholder, "The generalized forward-backward method for analyzing the scattering from targets on ocean-like rough surfaces," IEEE Trans. Antennas Propag., Vol. 47, No. 6, 961-969, 1999.

12. Li, Z. and Y.-Q. Jin, "Bistatic scattering froma fractal dynamic rough sea surface with a ship presence at low grazing angle incidence using the GFBM/SAA," Microwave Opt. Technol. Lett., Vol. 31, No. 2, 146-151, 2001.

13. Tsang, L., C. H. Chan, K. Pak, and H. Sangani, "Monte-Carlo simulations of large-scale problems of random rough surface scattering and applications to grazing incidence with the BMIA/canonical grid method," IEEE Trans. Antennas Propag., Vol. 43, No. 8, 851-859, 1995.

14. Chan, C. H. and L. Tsang, "Monte-Carlo simulations of large-scale one-dimensional random rough surface scattering at near-grazing incidence: Penetrable case," IEEE Trans. Antennas Propag., Vol. 46, No. 1, 142-149, 1998.

15. Li, Q., C. H. Chan, and L. Tsan, "Monte Carlo simulations of wave scattering from lossy dielectric random rough surfaces using the physics-based two-grid method and the canonical-grid method," IEEE Trans. Antennas Propag., Vol. 47, No. 4, 752-763, 1999.

16. Johnson, J. T., "Numerical study of scattering from an object above a rough surface," IEEE Trans. Antennas Propag., Vol. 50, No. 10, 1361-1367, 2002.

17. Hestenes, M. R. and E. Stiefel, "Method of conjugate gradients for solving linear systems," J. Res. Natl. Bur. Stand., Vol. 49, 409-436, 1952.

18. Thorsos, E., "The validity of the Kirchhoff approximation for rough surface scattering using a Gaussian roughness spectrum," J. Acoust Soc. Am., Vol. 83, No. 1, 78-92, 1988.

19. Tsang, L., J. A. Kong, K.-H. Ding, and C. O. Ao, Scattering of Electromagnetic Waves: Numerical Simulations, John Wiley & Sons, 2001.

20. Ye, H. and Y.-Q. Jin, "Parameterization of the tapered incident wave for numerical simulation of electromagnetic scattering from rough surface," IEEE Trans. Antennas Propag., Vol. 53, No. 3, 1234-1237, 2005.

21. Message Passing Interface Forum, MPI: A message-passing interface, 1995. http://www. mpi-forum.org/docs/mpi-11-html/mpi-report.html.

22. Lauria, M. and A. Chien, "MPI-FM: High performance MPI on workstation clusters," Journal of Parallel and Distributed Computing, Vol. 40, 4-18, 1997.

23. Rokhlin, V., "Rapid solution of integral equations of scattering theory in two dimensions," J. Comput. Phys., Vol. 86, 414-439, 1990.

24. Lu, C. C. and W. C. Chew, "Fast algorithmfor solving hybrid integral equations," IEE Proceedings-H, Vol. 140, 455-460, 1993.

25. Li, S. Q., C. H. Chan, and M. Y. Xia, "Multilevel expansion of the sparse-matrix canonical grid method for two-dimensional random rough surfaces," IEEE Trans. Antennas Propag., Vol. 49, No. 11, 1579-1589, 2001.

26. Xia, M. Y., C. H. Chan, S. Q. Li, B. Zhang, and L. Tsang, "An efficient algorithmfor electromagnetic scattering from rough surfaces using a single integral equation and multilevel sparse-matrix canonical-grid method," IEEE Trans. Antennas Propag., Vol. 51, No. 6, 1142-1149, 2003.

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