FULL POLARIMETRIC UWB GB-SAR FOR DAMAGE ASSESSMENT OF WOODEN BUILDING STRUCTURES

被引：0
|
作者：
Koyama, Christian N. [1 ]
Iitsuka, Yasushi [1 ]
Takahashi, Kazunori [1 ]
Sato, Motoyuki [1 ]
机构：
[1] Tohoku Univ, Ctr Northeast Asian Studies, 41 Kawauchi, Sendai, Miyagi 9808576, Japan
来源：
2015 IEEE INTERNATIONAL GEOSCIENCE AND REMOTE SENSING SYMPOSIUM (IGARSS) | 2015年
关键词：
Synthetic aperture radar (SAR); radar polarimetry; calibration; disaster mitigation; non-destructive testing;
D O I：
暂无
中图分类号：
TM [电工技术]; TN [电子技术、通信技术];
学科分类号：
0808 ; 0809 ;
摘要：
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.
引用
收藏
页码：2719 / 2722
页数：4
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