Fast iterative approach to the difference scattering from a dielectric target above a rough surface

Ye, Hongxia; Jin, Ya‐Qiu

doi:10.1360/142005-200

Cited by 14 publications

(25 citation statements)

References 13 publications

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“…The rough surface length is set at 343.3 m according to [15]. It has been validated that under this setting, the RCS and angular glint are both convergent.…”

Section: Angular Glint Simulationmentioning

confidence: 99%

Angular Glint Analysis of the 2-D Target Above a Rough Surface Based on Extraction of the Coupling Currents

Xiao¹,

He²,

Zhang³

et al. 2015

PIER M

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Abstract-In this paper, angular glint characteristics of a two-dimension (2-D) perfect electric conductor (PEC) target above a PEC rough surface are investigated. The induced surface currents on the target and on the rough surface are obtained by employing the method of moments combining UV matrix decomposition technique (MOM-UV). Based on electromagnetic (EM) theory and the phasefront distortion concept of angular glint, the formulae of angular glint for 2-D target are proposed, and angular glint is calculated precisely by using phase gradient method (PGM). The analysis of the result is implemented by means of numerical extraction of the coupling currents and relationship between the phase front and angular glint, thus revealing the effects of the coupling on the angular glint.

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“…The rough surface length is set at 343.3 m according to [15]. It has been validated that under this setting, the RCS and angular glint are both convergent.…”

Section: Angular Glint Simulationmentioning

confidence: 99%

Angular Glint Analysis of the 2-D Target Above a Rough Surface Based on Extraction of the Coupling Currents

Xiao¹,

He²,

Zhang³

et al. 2015

PIER M

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“…It is noteworthy that the scattering from breaking water waves with roughened front faces has been numerically examined by West [8]. However, the previous works were only focused on scattering from the breaking wave, and there are few papers [9,10] discussing the influence of breaking wave on the scattering from an object above the sea surface.…”

Section: Introductionmentioning

confidence: 99%

Scattering From a Target Above Rough Sea Surface With Breaking Water Wave by an Iterative Analytic-Numerical Method

Xu¹,

Guo²,

Wang³

et al. 2015

PIER M

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Abstract-Two-dimensional (2D) electromagnetic scattering from a target above the sea with breaking water wave is studied by a multiregional iterative analytical-numerical method that combines the boundary integral method (BIM) and the Kirchhoff approximation (KA). Based on the "PiersonMoskowitz" (PM) sea surface and the LONGTANK breaking wave, a theoretical model of a target above the rough sea surface with breaking wave is built firstly in this paper. Unlike traditional sea surface, the multipath scattering between the crest of the breaking wave and the target cannot be accurately predicted based on KA alone. To improve the algorithm precision, a multiregional hybrid analytical-numerical method is proposed. In our multiregional model, the whole sea is divided into two subregions: the breaking wave and the PM sea surface. The scattering from the breaking wave and the object is well approximated by BIM, while the PM sea surfaces can be estimated very well by KA based on Fresnel theories. Taking the interaction between KA region and BIM region into account, an iterative system is developed which gives a quick convergence. The hybrid technique presented here is highly efficient in terms of computing memory, time consumed, and versatility.

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“…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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Fast iterative approach to the difference scattering from a dielectric target above a rough surface

Cited by 14 publications

References 13 publications

Angular Glint Analysis of the 2-D Target Above a Rough Surface Based on Extraction of the Coupling Currents

Angular Glint Analysis of the 2-D Target Above a Rough Surface Based on Extraction of the Coupling Currents

Scattering From a Target Above Rough Sea Surface With Breaking Water Wave by an Iterative Analytic-Numerical Method

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

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