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Accurate 3-Dimensional Imaging Method by Multi-Static RPM with Range Point Clustering for Short Range UWB Radar
IEICE TRANSACTIONS on Communications
Publication Date: 2017/08/01
Online ISSN: 1745-1345
Type of Manuscript: PAPER
UWB radar, range points migration, multi-static UWB radar, millimeter wave radar, short range sensing,
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Ultra-wideband millimeter wave radars significantly enhance the capabilities of three-dimensional (3D) imaging sensors, making them suitable for short-range surveillance and security purposes. For such applications, developed the range point migration (RPM) method, which achieves highly accurate surface extraction by using a range-point focusing scheme. However, this method is inaccurate and incurs great computation cost for complicated-shape targets with many reflection points, such as the human body. As an essential solution to this problem, we introduce herein a range-point clustering algorithm that exploits, the RPM feature. Results from numerical simulations assuming 140-GHz millimeter wavelength radar verify that the proposed method achieves remarkably accurate 3D imaging without sacrificing computational efficiency.