Fast and Accurate 3-D Imaging Algorithm with Linear Array Antennas for UWB Pulse Radars

Shouhei KIDERA  Yusuke KANI  Takuya SAKAMOTO  Toru SATO  

Publication
IEICE TRANSACTIONS on Communications   Vol.E91-B   No.8   pp.2683-2691
Publication Date: 2008/08/01
Online ISSN: 1745-1345
DOI: 10.1093/ietcom/e91-b.8.2683
Print ISSN: 0916-8516
Type of Manuscript: PAPER
Category: Sensing
Keyword: 
UWB pulse radars,  fast and accurate imaging,  BST,  bi-static radar,  linear array antennas,  

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Summary: 
Pulse radars with UWB signals are promising as a high-resolution imaging technique that can be used for the non-destructive measurement of surface details in industrial products such as antennas and aircraft. We have already proposed a fast 3-D imaging algorithm, SEABED, that utilizes a reversible transform between the time delay and the target boundary. However, data acquisition is time-consuming when obtaining an accurate image because it assumes a mono-static radar with 2-D scanning of an antenna. In this paper, we utilize linear array antennas and propose a fast and accurate imaging algorithm. We extend the reversible transform for mono-static radars to apply to bi-static radars to reduce the data acquisition time. The effectiveness of the proposed method is verified with numerical simulations and experiments.