Electromagnetic Scattering from a Circular Target above or below Rough Surface

Wang, X.; Wang, C.-F.; Gan, Yeow-Beng; Li, Le‐Wei

doi:10.2528/pier02111901

Cited by 61 publications

(49 citation statements)

References 28 publications

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“…Some methods have been to deal with the problem, taking for example, the "four-path" method [1], the image technique [2], the high-frequency method [3], and the calculation technique based on physical optics approximation [4] have been investigated for a target above a flat surface. The hybrid SPM/MOM technique [5] and the method of moments [6] are employed to calculate the scattering of target above on a rough surface. The finite-element method with domain decomposition and generalized forward-backward method [7,8] were analyzed for the electromagnetic scattering from target located above an ocean-like rough surface.…”

Section: Introductionmentioning

confidence: 99%

FDTD Investigation on Bistatic Scattering From a Target Above Two-Layered Rough Surfaces Using Upml Absorbing Condition

Li¹,

Guo²,

Zeng³

2008

PIER

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Abstract-This paper presents an investigation for the electromagnetic scattering characteristic of the 2-D infinitely long target located above two-layered 1-D rough surfaces. A finite-difference time-domain (FDTD) approach is used in this study, and the uniaxial perfectly matched layer (UPML) medium is adopted for truncation of FDTD lattices, in which the finite-difference equations can be used for the total computation domain by properly choosing the uniaxial parameters. The upper and lower interfaces are characterized with Gaussian statistics for the height and the autocorrelation function. For the composite scattering of infinitely long cylinder and underlying single-layered rough surfaces as an example, the angular distribution of scattering coefficient with different incident angles is calculated and it shows good agreement with the numerical result by the conventional method of moments. And the influence of some parameters related to the twolayered rough surfaces and target on composite scattering coefficient is investigated and discussed in detail.

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Section: Introductionmentioning

confidence: 99%

FDTD Investigation on Bistatic Scattering From a Target Above Two-Layered Rough Surfaces Using Upml Absorbing Condition

Li¹,

Guo²,

Zeng³

2008

PIER

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“…1. According to the Ewald-Oseen' extinction theorem and the boundary conditions on the rough surface and target [14], the following integral equations can be obtained…”

Section: Formulation Of the Composite Problemmentioning

confidence: 99%

“…For the targets and rough surface composite scattering, considerable contributions have been made and several methods have been presented during these years, such as MOM [14,15], parallel MOM [16], finite-element (FEM) method [17], finite difference time domain (FDTD) method [18], hybrid SPM/MOM technique [19], hybrid KA/MOM technique [20], hybrid PO/MOM technique [21], reciprocity theorem [22], Generalized forward-backward method (GFBM) [23,24], Mode-expansion method [25], fast iterative approach [26], bidirectional analytic ray tracing method [27], etc. Although the aforementioned numerical methods are of respective important advantages, but some of them are fast but not exact enough, or some of them are exact but not fast enough, therefore, it should be make sense in contributing efforts to investigate and attempt to improve the efficiency and accuracy of the adoptive scheme.…”

Section: Introductionmentioning

confidence: 99%

An Investigation on Numerical Characterization of Scattering From Target in a Dielectric Rough Soil Surface

Yu¹,

Zeng²,

Guo³

et al. 2013

PIER

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Abstract-Based on the Propagation-Inside-Layer Expansion (PILE) and Forward-Backward method (FBM), the composite scattering from the target below a dielectric rough soil surface using the extended PILE (EPILE) combined with the Forward-Backward method (FBM) is studied. The accuracy and efficiency of the EPILE + FBM for this specific type of composite scattering is researched by comparing with the method of moments (MOM), the influences of the target size, target depth, target horizontal distance, the rms height, the correlation length, the incident angle and the soil moisture content, etc., to the bistatic scattering coefficient (BSC) are also investigated.

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“…Electromagnetic scattering from the arbitrary shape target above, on (partially buried) and below a rough surface has attracted much interest during recent year [15][16][17][18][19][20]. So the FBM/SAA remains to be required to be further improved for solving of scattering from inhomogeneous composite rough surface with large arbitrarily shaped conducting object partially buried, as described in Fig.…”

Section: Introductionmentioning

confidence: 99%

Bistatic Scattering From Rough Dielectric Soil Surface With a Conducting Object With Arbitrary Closed Contour Partially Buried by Using the FBM/Saa Method

Li¹

2007

PIER

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Abstract-A hybrid approach of the forward-backward method (FBM) with spectral accelerate algorithm (SAA) and Monte Carlo method is developed in this paper. It is applied to numerical simulation of bistatic scattering from one-dimensional arbitrary dielectric constant soil surface with a conducting object with arbitrary closed contour partially buried under both the horizontal and vertical polarization tapered wave incidence at low grazing angle. The energy conservation has been checked for the FBM/SAA. Numerical simulations of bistatic scattering at low grazing angle have been discussed in this paper.

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Electromagnetic Scattering from a Circular Target above or below Rough Surface

Abstract: Abstract-The electromagnetic scattering from a perfectly electric conducting (PEC) target located above or below rough surface is investigated, for the case of TM polarization, using the Method of

Cited by 61 publications

References 28 publications

FDTD Investigation on Bistatic Scattering From a Target Above Two-Layered Rough Surfaces Using Upml Absorbing Condition

FDTD Investigation on Bistatic Scattering From a Target Above Two-Layered Rough Surfaces Using Upml Absorbing Condition

An Investigation on Numerical Characterization of Scattering From Target in a Dielectric Rough Soil Surface

Bistatic Scattering From Rough Dielectric Soil Surface With a Conducting Object With Arbitrary Closed Contour Partially Buried by Using the FBM/Saa Method

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