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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, Min Zhang, Ding Nie, and Wang-Qiang Jiang
Progress In Electromagnetics Research M, Vol. 39, 1-9, 2014
doi:10.2528/PIERM14050801

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.

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
http://www.jpier.org/PIERM/pier.php?paper=14050801

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