A Robust and Fast Imaging Algorithm with an Envelope of Circles for UWB Pulse Radars

Shouhei KIDERA  Takuya SAKAMOTO  Toru SATO  

IEICE TRANSACTIONS on Communications   Vol.E90-B    No.7    pp.1801-1809
Publication Date: 2007/07/01
Online ISSN: 1745-1345
DOI: 10.1093/ietcom/e90-b.7.1801
Print ISSN: 0916-8516
Type of Manuscript: PAPER
Category: Sensing
UWB pulse radars,  SEABED,  robust and fast imaging,  high resolution imaging,  envelope of circles,  

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Target shape estimation with UWB pulse radars is a promising imaging technique for household robots. We have already proposed a fast imaging algorithm, SEABED, that is based on a reversible transform BST (Boundary Scattering Transform) between the received signals and the target shape. However, the target image obtained by SEABED deteriorates in a noisy environment because it utilizes a derivative of received data. In this paper, we propose a robust imaging method with an envelope of circles. We clarify by numerical simulation that the proposed method can realize a level of robust and fast imaging that cannot be achieved by the original SEABED.