An Improved MM-PO Method with UV Technique for Scattering from an Electrically Large Ship on a Rough Sea Surface at Low Grazing Angle
Keywords:
An Improved MM-PO Method with UV Technique for Scattering from an Electrically Large Ship on a Rough Sea Surface at Low Grazing AngleAbstract
An improved MM-PO-UV hybrid method is developed to calculate the bistatic scattering from the two-dimensional (2-D) composite model of an electrically large ship (ELS) on a one-dimensional (1-D) rough sea surface at a low grazing angle (LGA). The subdivision of the MM and PO region is performed flexibly according to the physical considerations. The MM region contains not only the ship but also a small portion of the neighboring sea region where the surface currents need to be modeled accurately. An iterative solution BiCGSTAB is adopted to solve the final matrix equation of a large dimension caused by the ELS. Then, a UV matrix decomposition technique is applied as the fast algorithm to accelerate the matrix-vector productions and the matrix elements filling in. The improved method makes it possible for the Monte-Carlo simulation of large-scale complex target/rough surface problems under an LGA. The accuracy is validated in comparison with the traditional MOM method.
Downloads
References
E. A. Shtager, “An Estimation of Sea Surface
Influence on Radar Reflectivity of Ships,”
IEEE Transactions on Antennas and
Propagation, vol. 47, no. 10, pp. 1623-1627,
Oct. 1999.
R. J. Burkholder, M. R. Pino, and F. Obelleiro,
“A Monte Carlo Study of the Rough Sea
Surface Influence on the Radar Scattering
from 2-D Ships,” IEEE Transactions on
Antennas and Propag. Mag., vol. 43, no. 2,
-33, Apr. 2001.
M. R. Pino, R. J. Burkholder, and F. Obelleiro,
“Spectral Acceleration of the Generalized
Forward-Backward Method,” IEEE Trans.
Antennas Propag., vol. 50, no. 6, pp. 785-797,
Jun. 2002.
K. Jamil and R. J. Burkholder, “Radar
Scattering from a Rolling Target Floating on a
Time-Evolving Rough Sea Surface,” IEEE
Trans. Geosci. Remote Sens., vol. 44, no. 11,
pp. 3330-3337, 2006.
C. H. Chan, L. Tsang, and Q. Li, “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, pp. 142–149, Jan.
P. Liu and Y. Q. Jin, “Numerical Simulation
of Bistatic Scattering from a Target at Low
Altitude above Rough Sea Surface under an
EM-Wave Incidence at Low Grazing Angle by
using the Finite Element Method,” IEEE
Trans. Antennas Propag., vol. 52, no. 5, pp.
-1210, May 2004.
S. Y. He and G. Q. Zhu, “A Hybrid MM-PO
Method Combining UV Technique for
Scattering from Two-Dimensional Target
above a Rough Surface,” Microwave Opt.
Technol. Lett., vol. 49, no. 12, pp. 2957-2960,
Dec. 2007.
H. T. Chen, J. X. Luo, and G. Q. Zhu, “Using
UV Technique to Accelerate the MM-PO
Method for Three-Dimensional Radiation and
Scattering Problem,” Microwave Opt.
Technol. Lett., vol. 48, no. 8, pp. 1615 -1618,
E. Topsakal, R. Kindt, K. Sertel, and J.
Volakis, “Evaluation of the BiCGSTAB(l)
Algorithm for Finite-Element/Boundary-
Integral Method,” IEEE Trans. Antennas
Propagation Magazine, vol. 43, no. 6, pp.
-131, Dec. 2001.
F. S. Deng, S. Y. He, H. T. Chen, W. D. Hu,
W. X. Yu, and G. Q. Zhu, “Numerical
Simulation of Vector Wave Scattering from
the Target and Rough Surface Composite
Model with 3-D Multilevel UV Method,”
IEEE Trans. Antennas Propagat., vol. 58, no.
, pp. 1625-1634, May 2010.
L. Tsang, D. Chen, P. Xu, Q. Li, and V.
Jandhyala, “Wave Scattering with the UV
Multilevel Partitioning Method: 1. Two-
Dimensional Problem of Perfect Electric
Conductor Surface Scattering,” Radio Science,
vol. 39, RS5010, Oct. 2004.
L. Tsang, J. A. Kong, K. H. Ding, and C. O.
Ao, Scattering of Electromagnetic Waves,
Numerical Simulations, Wiley-Interscience,
Hoboken, N. J., 2001.
H. X. Ye and Y. Q. Jin, “Fast Iterative
Approach to Difference Scattering from the
Object above a Rough Surface,” IEEE Trans.
Geosci. Remote Sens., vol. 44, no. 1, pp. 108-
, Jan. 2006.
