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PIER PIER B PIER C PIER M PIER Letters PIER Photonics
2014-09-23
An Analysis of Near-Field Scattering Characteristics of Rough Target: from the Perspective of Bidirectional Reflectance Distribution Function Based on LS-SVM
By
Ning Li,

    Dr. Ning Li

    School of Physics and Optoelectronic Engineering

    Xidian University

    China

    Homepage

Min Zhang,

    Prof. Min Zhang

    School of Science

    Xidian University

    China

    Homepage

Ding Nie,

    Prof. Ding Nie

    School of Science

    Xidian University

    China

    Homepage

Wang-Qiang Jiang

    Dr. Wang-Qiang Jiang

    School of Science

    Xidian University

    China

    Homepage

Progress In Electromagnetics Research M, Vol. 39, 1-9, 2014
doi:10.2528/PIERM14050801 | Google Scholar

Abstract
The near-field scattering characteristics of rough target are analyzed by using a revised bidirectional reflectance distribution function (BRDF) of a rough surface based on least squares support vector machine (LS-SVM). The revised BRDF is more reliable in a larger range of incident angles and scattering angles that beyond the scope of experimental measurements. The basic principle of LS-SVM and the modeling process are firstly introduced in detail. Then the comparison among LS-SVM, the back propagation neural network (BPNN) and the measured data is carried out．The results show that the LS-SVM model has better integrative performance, stronger generalization ability and higher precision. On this basis, the calculation of the near-field radar cross section (RCS) of a complex target is safely performed and analyzed. The method proposed is helpful to better investigate the near-field scattering characteristics of rough target.
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Citation
Ning Li, Min Zhang, Ding Nie, and Wang-Qiang Jiang, "An Analysis of Near-Field Scattering Characteristics of Rough Target: from the Perspective of Bidirectional Reflectance Distribution Function Based on LS-SVM," Progress In Electromagnetics Research M, Vol. 39, 1-9, 2014.
doi:10.2528/PIERM14050801
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