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Forest Products Laboratory
One Gifford Pinchot Drive
Madison, WI 53726-2398
Phone: (608) 231-9200
Fax: (608) 231-9592


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Title: Object detection of ground-penetrating radar signals using empirical mode decomposition and dynamic time warping

Source: Forests. 11(2): 230

Author(s)Wu, Xi ; Senalik, Christopher Adam; Wacker, James ; Wang, Xiping ; Li, Guanghui

Publication Year: 2020  View PDF »

Category: Journal Articles
Associated Research Project(s):   FPL-4714-1B

Abstract: An object detection method of ground-penetrating radar (GPR) signals using empirical mode decomposition (EMD) and dynamic time warping (DTW) is proposed in this study. Two groups of timber specimens were examined. The first group comprised of Douglas fir (Pseudotsuga menziesii) timber sections prepared in the laboratory with inserts of known internal characteristics. The second group comprised of timber girders salvaged from the timber bridges on historic Route 66 over 80 years. A GSSI Subsurface Interface Radar (SIR) System 4000 with a 2 GHz palm antenna was used to scan these two groups of specimens. GPR sensed differences in dielectric constants (DC) along the scan path caused by the presence of water, metal, or air within the wood. This study focuses on the feature identification and defect classification. The results show that the processing methods were efficient for the illustration of GPR information.

Keywords: Ground-penetrating radar; timber; metal; moisture content; signal processing

Publication Review Process: Formally Refereed

File size: 1,000 kb(s)

Date posted: 03/12/2020

This publication is also viewable on Treesearch:  view
RITS Product ID: 97278
Current FPL Scientists associated with this product (listed alphabetically)
Senalik, Christopher
Research General Engineer
Wacker, James P.
Research General Engineer
Wang, Xiping
Research Forest Products Technologist

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