Presentation 2016-11-17
Nondestructive Inspection of Airport Taxiways by Multi-Static Array GPR “YAKUMO”
Zou Lilong, Sato Motoyuki,
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Abstract(in Japanese) (See Japanese page)
Abstract(in English) In this paper, a multi-statics GPR “YAKUMO” was applied to inspect the health of airport taxiway. The GPR YAKUMO consists of 8 transmitting and 8 receiving antennas. It is a stepped frequency continuous wave system (SFCW) operating in the frequency range from 50 MHz to 1.5 GHz. The broad frequency bandwidth operation and the antenna configuration enable the system capable to provide a 3-D subsurface image with high resolution. The antenna array can record a full 64-channel dataset within 100ms and can cover a swath of 2 m by a single scan. The GPR survey was conducted both along the sound and non-sound taxiway which were inspected by conventional acoustic sounding method. Shallow structure, to about 1 m depth, is obvious on the GPR sections. The base asphalt of the taxiway was very clearly shown on the B scans. Preliminary analysis of the CMP profile give the velocity of taxiway around 0.15 m/ns. Through the 3-D reconstructed images and NMO stacking profiles of subsurface, the non-health parts of taxiways could be detected by multi-statics GPR YAKUMO.
Keyword(in Japanese) (See Japanese page)
Keyword(in English) Multi-statics GPR / nondestructive inspection / NMO / CMP / airport taxiway / 3-D imaging / SIP
Paper # EMT2016-50
Date of Issue 2016-11-10 (EMT)

Conference Information
Committee EMT / IEE-EMT
Conference Date 2016/11/17(3days)
Place (in Japanese) (See Japanese page)
Place (in English) Shirahama Coganoi Resort & Spa
Topics (in Japanese) (See Japanese page)
Topics (in English)
Chair Motoyuki Sato(Tohoku Univ.) / Masahiro Tanaka(Gifu Univ.)
Vice Chair Akira Hirose(Univ. of Tokyo)
Secretary Akira Hirose(Mitsubishi Electric) / (Univ. of Hyogo)
Assistant Tsuyoshi Matsuoka(Kyushu Sangyo Univ.) / Yoshihiro Naka(Kyushu Univ. of Health and Welfare)

Paper Information
Registration To Technical Committee on Electromagnetic Theory / Technical Meeting on Electromagnetic Theory
Language ENG-JTITLE
Title (in Japanese) (See Japanese page)
Sub Title (in Japanese) (See Japanese page)
Title (in English) Nondestructive Inspection of Airport Taxiways by Multi-Static Array GPR “YAKUMO”
Sub Title (in English)
Keyword(1) Multi-statics GPR
Keyword(2) nondestructive inspection
Keyword(3) NMO
Keyword(4) CMP
Keyword(5) airport taxiway
Keyword(6) 3-D imaging
Keyword(7) SIP
1st Author's Name Zou Lilong
1st Author's Affiliation Tohoku University(Tohoku Univ.)
2nd Author's Name Sato Motoyuki
2nd Author's Affiliation Tohoku University(Tohoku Univ.)
Date 2016-11-17
Paper # EMT2016-50
Volume (vol) vol.116
Number (no) EMT-309
Page pp.pp.71-76(EMT),
#Pages 6
Date of Issue 2016-11-10 (EMT)