A signal processing methodology for assessing the performance of ASTM standard test methods for GPR systems

TLDR: This work proposes a GPR signal processing methodology, calibrated and validated on the basis of a consistent amount of data collected by means of laboratory-scale tests, to assess the performance of the above standard test methods for GPR systems.

About: This article is published in Signal Processing.The article was published on 2017-03-01 and is currently open access. It has received 27 citations till now. The article focuses on the topics: Ground-penetrating radar.

Figures

Fig. 8. (a) Bias and (b) Variance of the estimation error for a GPR with a central frequency of 2GHz NA, and three different heights (30, 40, and 50 cm) from the metal plate.

Fig. 7. (a) Bias and (b) Variance of the estimation error for a GPR with a central frequency of 2GHz EU, and three different heights (30, 40, and 50 cm) from the metal plate.

Fig. 1. Typical reflection pattern of a GPR measurement in multi-layered structures with an aircoupled radar system: (a) trend of reflections in a cross-section of a multi-layered structure; (b) sketch of the relevant GPR signal trace.

Fig. 3. Normalized (to 1) amplitude variations for 100 consecutive radar traces of: (a) the signal peak (As), and (b) the noise peak (An) after PEC reflection, with the 1GHz GPR system.

Fig. 10. Accuracy vs. optimal threshold for a GPR with a central frequency of 2GHz EU at three different heights (30, 40, and 50 cm) from the metal plate

Fig. 9. Accuracy vs. optimal threshold for a GPR with a central frequency of 1GHz at three different heights (30, 40, and 50 cm) from the metal plate

Frequently asked questions

Q1. What contributions have the authors mentioned in the paper "A signal processing methodology for assessing the performance of astm standard test methods for gpr systems" ?

This work proposes a GPR signal processing methodology, calibrated and validated on the basis of a consistent amount of data collected by means of laboratory-scale tests, to assess the performance of the above standard test methods for GPR systems. Finally, the study is extended to GPR systems with different antenna frequencies to analyze the specific relationship between the frequency of investigation, the optimal thresholds, and the signal stability.