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A Fast Algorithm for 3Dimensional Imaging with UWB Pulse Radar Systems
Takuya SAKAMOTO
Publication
IEICE TRANSACTIONS on Communications
Vol.E90B
No.3
pp.636644 Publication Date: 2007/03/01 Online ISSN: 17451345
DOI: 10.1093/ietcom/e90b.3.636 Print ISSN: 09168516 Type of Manuscript: PAPER Category: Sensing Keyword: 3D, imaging, ultrawideband (UWB), pulse radar, fast algorithm,
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Summary:
Ultrawideband pulse radars are promising candidates for 3dimensional environment measurements by autonomous robots. Estimating 3dimensional target shapes by scanning with an omnidirectional antenna is an illposed inverse problem. Conventional algorithms such as the synthetic aperture method or parametric algorithms have a problem in terms of their calculation times. We have clarified the existence of a reversible transform between received data and target shapes for 3dimensional systems. Calculation times are remarkably reduced by applying this transform because it directly estimates target shapes without iterations. We propose a new algorithm based on the transform and present an application example using numerical simulations. We confirm that the proposed algorithm has sufficient accuracy and a short calculation time.

