Presentation 2015-01-23
Estimation of Rebar Using Synthetic Aperture Processing Considering Permittivity Distribution
Kazuhito TONOE, Toshiyuki TANAKA, Takashi TAKENAKA, Toshihumi MORIYAMA,
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Abstract(in English) We can find the position of rebar into concrete structure by using radar method. However as the relative permittivity of concrete is unknown, the accurate estimation of the depth of rebar is very difficult. Until now, we supposed that the permittivity of concrete is uniform and proposed simultaneous estimation of the permittivity of the concrete and the depth of the rebar. In generally, the permittivity of concrete is inhomogeneous. In this paper, we propose the estimation of rebar using the synthesis aperture processing considering the permittivity distribution of concrete. By numerical simulations, the effectiveness of proposed method is shown. Also, reflection waves from rebar into the inhomogeneous concrete structure are obtained in numerical calculations using the two-dimensional FDTD and the permittivity distribution is used the measured one of self-made concrete.
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Keyword(in English) Detection of rebar / Synthetic Aperture Processing / Inhomogeneous / NDT / Concrete radar
Paper # SANE2014-118
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Conference Information
Committee SANE
Conference Date 2015/1/15(1days)
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Paper Information
Registration To Space, Aeronautical and Navigational Electronics (SANE)
Language JPN
Title (in Japanese) (See Japanese page)
Sub Title (in Japanese) (See Japanese page)
Title (in English) Estimation of Rebar Using Synthetic Aperture Processing Considering Permittivity Distribution
Sub Title (in English)
Keyword(1) Detection of rebar
Keyword(2) Synthetic Aperture Processing
Keyword(3) Inhomogeneous
Keyword(4) NDT
Keyword(5) Concrete radar
1st Author's Name Kazuhito TONOE
1st Author's Affiliation ()
2nd Author's Name Toshiyuki TANAKA
2nd Author's Affiliation
3rd Author's Name Takashi TAKENAKA
3rd Author's Affiliation
4th Author's Name Toshihumi MORIYAMA
4th Author's Affiliation
Date 2015-01-23
Paper # SANE2014-118
Volume (vol) vol.114
Number (no) 397
Page pp.pp.-
#Pages 6
Date of Issue