Full polarimetric UWB GB-SAR for damage assessment of wooden building structures

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

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

3 Citations (Scopus)

Abstract

A full polarimetric ground-based SAR system for subsurface damage assessment of wooden building structures has been developed. The system is based on a 4-channel VNA connected to a polarimetric antenna array. The array elements consist of 4 newly developed circular polarization cavity-backed spiral antennas, which have very good wideband characteristics and excellent polarimetric performance. By 2 dimensional scanning the system can achieve polarimetric 3D imaging with super high-resolution of 1 cm in x-/y-direction and 2 cm in z-direction. Using the polarimetric phase information, deformations of internal wooden structures like beams and bars with inclination angles <1 deg. can be detected, which is not possible with any other non-destructive testing technique.

Original languageEnglish
Title of host publication2015 IEEE International Geoscience and Remote Sensing Symposium, IGARSS 2015 - Proceedings
PublisherInstitute of Electrical and Electronics Engineers Inc.
Pages2719-2722
Number of pages4
ISBN (Electronic)9781479979295
DOIs
Publication statusPublished - 2015 Nov 10
EventIEEE International Geoscience and Remote Sensing Symposium, IGARSS 2015 - Milan, Italy
Duration: 2015 Jul 262015 Jul 31

Publication series

NameInternational Geoscience and Remote Sensing Symposium (IGARSS)
Volume2015-November

Other

OtherIEEE International Geoscience and Remote Sensing Symposium, IGARSS 2015
CountryItaly
CityMilan
Period15/7/2615/7/31

Keywords

  • Synthetic aperture radar (SAR)
  • calibration
  • disaster mitigation
  • non-destructive testing
  • radar polarimetry

ASJC Scopus subject areas

  • Computer Science Applications
  • Earth and Planetary Sciences(all)

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