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2016-06-02

Modified RANSAC Method for Three-Dimensional Scattering Center Extraction at a Single Elevation

By Qinglin Zhai, Jiemin Hu, Xingwei Yan, Ronghui Zhan, Jianping Ou, and Jun Zhang
Progress In Electromagnetics Research B, Vol. 68, 89-103, 2016
doi:10.2528/PIERB16020508

Abstract

In this paper, we focus on the 3D SC model reconstruction from data with wide azimuthal aperture at a single elevation. Since the existing method is difficult to implement for high-frequency signal or large-size target, we propose a modified RANSAC method for the extraction. In our approach, the 3D positions of the SCs are estimated from the 1D SCs via a modified RANSAC method. Then the scattering coefficients are refined via a linear least squares algorithm. The approach is robust with noise because the RANSAC method is able to tolerate a tremendous fraction of outliers. Moreover, it does not suffer from limited accuracy caused by the discretization of the parameter space in [13]. Experiments demonstrate the effectiveness of the proposed approach.

Citation


Qinglin Zhai, Jiemin Hu, Xingwei Yan, Ronghui Zhan, Jianping Ou, and Jun Zhang, "Modified RANSAC Method for Three-Dimensional Scattering Center Extraction at a Single Elevation," Progress In Electromagnetics Research B, Vol. 68, 89-103, 2016.
doi:10.2528/PIERB16020508
http://www.jpier.org/PIERB/pier.php?paper=16020508

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