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Acta Armamentarii ›› 2013, Vol. 34 ›› Issue (11): 1474-1478.doi: 10.3969/j.issn.1000-1093.2013.11.021

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Radar Imaging Characteristics of Metallic Spheres

DENG Bin, WANG Rui-jun, QIN Yu-liang, WANG Hong-qiang, LI Xiang   

  1. (School of Electronic Science and Engineering, National University of Defense Technology, Changsha 410073, Hunan,China)
  • Received:2011-11-18 Revised:2011-11-18 Online:2014-01-22
  • Contact: DENG Bin E-mail:dengbin@nudt.edu.cn

Abstract: The amplitude and phase characteristics of complex radar cross section (RCS) of a metallic sphere are analyzed based on the precise solution of its back scattering. The high resolution range profile of a sphere takes on one or two peaks at different bands, while its 2D image can be typified by an arc or a point at different bands and rotation angles. A sphere should be characterized by a dispersive, migratory or pointlike scattering center model under different conditions. These conclusions may provide an important reference for RCS calibration and scattering source diagnosis.

Key words: radar engineering, metallic sphere, radar cross section, complex radar cross section, radar imaging, scattering center model

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