含腔电大目标宽角RCS的快速插值计算

Abstract

Abstract:

An interpolation technique which combines Chebeshev approximation and shooting and bouncing ray (SBR) method is proposed to calculate wide angel radar cross section (RCS) of electrically large object with open cavities.The nodes of Chebyshev within a given angel range are found firstly,and the RCS at these nodes are computed by SBR method.Then the wide angels RCS can be obtained at any angel within the given angel range via the Chebeshev approximation.The numerical results show that this method is efficient and accurate,and can save more than 60% computing time.

Key words: electrically large object;cavities;Chebyshev approximation;shooting and bouncing ray;radar cross section

CLC Number:

TN011

CHENG Qiong-Nian, XIE Yong-Jun, LEI Zhen-Ya, FAN Jun, MO Yuan-Nan. Fast Interpolation of Wind Angel RCS Calculation of Electrically Large Objects with Open Cavities[J]., 2011, 24(5): 1-.

References

［1］Necmi Serkan Tezel.Electromagnetic Scattering by Anisotropic Inhomogeneous Impedance Cylinder of Arbitrary Shape Using Physical Optics［J］.IEEE Geoscience and Remote Sensing Letters,2008,5(4):663-667.

［2］Frank Weinmann.Ray Tracing with PO/PTD for RCS Modeling of Large Complex Objects［J］.IEEE Transactions on Antennas and Propagation,2006,54(6):1797-1806.

［3］Amane Miura,Yahya Rahmat Samii.Spaceborne Mesh Reflector Antennas with Complex Weaves:Extended PO/Periodic-MoM Analysis［J］.IEEE Transactions on Antennas and Propagation,2007,55(4):1022-1029.

［4］Hao Ling,Chou Ri Chee,Lee Shungwu.Shooting and Bouncing Rays:Calculating the RCS of an Arbitrarily Shaped Cavity［J］.IEEE Transaction on Antennas and Propagation,1989,37(2):194-205.

［5］Hao Ling,Lee Shungwu,Chou Ri Chee.High-frequency RCS of Open Cavities with Rectangle and Circular Cross Section［J］.IEEE Transaction on Antennas and Propagation,1989,37(5):649-654.

［6］Jin J M,Ni S S.Hybridization of SBR and FEM for Scattering by Large Bodies with Cracks and Cavities［J］.IEEE Transactions on Antennas and Propagation,1995,43(10):1130-1139.

［7］Jeng Shyh Kang,Jin Jianming,Ni Sean,et al.Combination of PO/SBR and the Finite Element Method for Scattering from a Large PEC Target with a Small Cavity［J］.IEEE Antennas and Propagation Society,AP-S International Symposium(Digest),1994(3):1386-1389.

［8］聂在平,王浩刚.含腔电大尺寸导体目标电磁散射的一体化数值模拟［J］.物理学报,2003,52(12):3035-3042.

［9］Wang Youbao,Bo Y M,Ji G Q,et al.Hybrid Technique of Fast RCS Computation with Characteristic Modes and AWE［J］.IEEE Antennas and Wireless Propaqation Letters,2007(6):464-467.

［10］Zhen Peng,Sheng Xinqing.A Bandwidth Estimation Approach for the Asymptotic Waveform Evaluation Technique［J］.IEEE Transaction on Antennas and Propagation,2008,56(3):913-917.

［11］Miller E K.Model-based Parameter Estimation in Electromagnetics,part III,Applications to EM Integral Equations［J］.IEEE Antennas and Propag Magazine,1998,40(3):49-66.

［12］Allard R J,Werner D H.The Model-based Parameter Estimation of Antenna Radiation Patterns Using Windowed Interpolation and Spherical Harmonics［J］.IEEE Trans on Antennas Propag,2003,51(8):1891-1906.

［13］Chen Mingsheng,Wu Xianliang,Sha Wei,et al.Fast Frequency Sweep Scattering Analysis for Multiple PEC Objects［J］.Applied Computational Electromagnetics Society Journal,2007,22(2):250-253.

［14］Jokar S,Mehri B.The Best Approximation of Some Rational Functions in Uniform Norm［J］.Applied Numerical Mathematics,1998,55(2):204-214.

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Fast Interpolation of Wind Angel RCS Calculation of Electrically Large Objects with Open Cavities

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