Polarimetric UWB SAR for subsurface imaging of building structures

Christian N. Koyama, Kazunori Takahashi, Yasushi Iitsuka, Motoyuki Sato

Research output: Chapter in Book/Report/Conference proceedingConference contribution

3 Citations (Scopus)

Abstract

Full polarimetric near-range UWB radar measurements for nondestructive high-resolution subsurface imaging of building structures are presented. We use a stepped frequency continuous wave GB-SAR system based on a 4-port VNA in combination with an antenna array consisting of four linearly polarized Vivaldi antenna elements. Coherent quad polarization data is acquired in an ultra-wideband frequency range from 1 GHz to 20 GHz. Results obtained from 2-dimensional scans of various targets demonstrate that the SAR processed high-resolution subsurface images are suitable to detect cracks and deformations of internal structures including metal nails and bolts. PolSAR analysis for measurements of different canonical scattering targets give promising preliminary results of polarimetric signatures.

Original languageEnglish
Title of host publication2014 Asia-Pacific Microwave Conference Proceedings, APMC 2014
PublisherInstitute of Electrical and Electronics Engineers Inc.
Pages1025-1027
Number of pages3
ISBN (Electronic)9784902339314
Publication statusPublished - 2014 Mar 25
Event2014 Asia-Pacific Microwave Conference, APMC 2014 - Sendai, Japan
Duration: 2014 Nov 42014 Nov 7

Publication series

Name2014 Asia-Pacific Microwave Conference Proceedings, APMC 2014

Other

Other2014 Asia-Pacific Microwave Conference, APMC 2014
CountryJapan
CitySendai
Period14/11/414/11/7

Keywords

  • Buildings
  • Microwave imaging
  • Nondestructive testing
  • Radar polarimetry
  • Synthetic aperture radar
  • UWB antennas

ASJC Scopus subject areas

  • Computer Networks and Communications
  • Hardware and Architecture
  • Electrical and Electronic Engineering

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