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Sizing and ranging criteria for SAR images of steel and wood specimens
Le, Viet ; Yu, Tzuyang ; Owusu Twumasi, Jones ; Tang, Qixiang Yu, Tzuyang ; Gyekenyesi, Andrew L ; Shull, Peter J ; Wu, H. Felix
SPIE 2016
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Título:
Sizing and ranging criteria for SAR images of steel and wood specimens
Autor:
Le, Viet
;
Yu, Tzuyang
;
Owusu Twumasi, Jones
;
Tang, Qixiang
Yu, Tzuyang
;
Gyekenyesi, Andrew L
;
Shull, Peter J
;
Wu, H. Felix
Notas:
Conference Location: Las Vegas, Nevada, United States
Conference Date: 2016-03-20|2016-03-24
Descrição:
The use of microwave and radar sensors in the nondestructive evaluation (NDE) of damaged materials and structures has been proven to be a promising approach. In this paper, a portable imaging radar sensor utilizing 10 GHz central frequency and stripmap synthetic aperture radar (SAR) imaging was applied to steel and wood specimens for size and range determination. Relationships between range and properties of SAR images (e.g. maximum amplitude and total SAR amplitude) were developed and reported for various specimens including a steel bar (2.5 cm by 2.5 cm by 28.5 cm), a wood bar (2.5 cm by 2.5 cm by 28.5 cm), a steel plate (39.7 cm by 57.9 cm by 1.75 cm), and a wood board (30.5 cm by 30.5 cm by 1.8 cm). Various ranges from 30 cm to 100 cm were used on these specimens. In our experiment, attenuation of radar signals collected by the imaging radar system on different material specimens was measured and modeled. Change in the attenuation of maximum SAR amplitude was observed in different materials. It is found that SAR images can be used to distinguish materials of different compositions and sizes.
Editor:
SPIE
Data de criação/publicação:
2016
Idioma:
Inglês
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