9 April 2009 Determining the optimal parameters in a distant radar NDE technique for debonding detection of GFRP-concrete systems
Author Affiliations +
Abstract
In the distant detection of debonding in glass fiber reinforced polymer (GFRP)-retrofitted concrete systems using radar NDE techniques, revealing the presence of debonding in reconstructed images is essential to the success of the techniques. An optimization scheme based on mathematical morphology is proposed for determining the optimal measurement and processing parameters in a distant radar NDE technique for debonding detection. Inverse synthetic aperture radar (ISAR) and backprojection algorithms are applied in the technique. Measurement (incident frequency and angle) and processing (frequency bandwidth and angular range) parameters are defined in this work. Performance of the optimization scheme is validated by laboratory ISAR measurements on GFRP-retrofitted concrete cylinders using radar signals in 8-18 GHz. From the results it is shown that better detection can be achieved by optimized measurements and processing.
© (2009) COPYRIGHT Society of Photo-Optical Instrumentation Engineers (SPIE). Downloading of the abstract is permitted for personal use only.
Tzu-Yang Yu, "Determining the optimal parameters in a distant radar NDE technique for debonding detection of GFRP-concrete systems", Proc. SPIE 7294, Nondestructive Characterization for Composite Materials, Aerospace Engineering, Civil Infrastructure, and Homeland Security 2009, 72940S (9 April 2009); doi: 10.1117/12.815895; https://doi.org/10.1117/12.815895
PROCEEDINGS
9 PAGES


SHARE
KEYWORDS
Radar

Nondestructive evaluation

Image processing

Inspection

Mathematical morphology

Linear filtering

Detection and tracking algorithms

Back to Top