What question did this study set out to answer?

To evaluate a dual-frequency ground-penetrating radar framework designed to balance penetration depth and vertical resolution for detecting subsurface road pavement defects.

August 19, 2026Interpretation

High-Resolution Dual-Frequency GPR for Non-Destructive Detection and Characterization of Subsurface Voids in Pavement Structures

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Authors

YXYiyuan Xiong YJYihuan Ji YYYang Yang

Discussion

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Overview

Validation study demonstrates dual-frequency radar improves resolution and penetration for pavement voids, suggesting more reliable urban hazard detection.

Key Points

To evaluate a dual-frequency ground-penetrating radar framework designed to balance penetration depth and vertical resolution for detecting subsurface road pavement defects.
Simulated electromagnetic responses to establish characteristic radar signatures of pavement voids and loose zones.
Collected and analyzed field validation data using 1.6 GHz and 400 MHz dual-frequency radar across a roadway in Guangxi Province, China.
High-frequency (1.6 GHz) signals achieved high vertical resolution for shallow defects (<3 m depth), delineating small anomalies and thin layers.
Low-frequency (400 MHz) signals provided higher signal-to-noise ratios and reliably identified deeper defects (>3 m depth).
Synergistic integration of both frequencies enabled precise characterization of defect geometry, burial depth, and lateral extent.

Cite This Study

Xiong et al. (2026) studied this question.

synapsesocial.com/papers/6a8563fe03308d306e2d76f3 https://doi.org/10.1190/int-2025-0035

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August 19, 2026Interpretation

High-Resolution Dual-Frequency GPR for Non-Destructive Detection and Characterization of Subsurface Voids in Pavement Structures

View Full Paper

Ask AI

Bookmark

Authors

YXYiyuan Xiong YJYihuan Ji YYYang Yang

Discussion

Member takes

Overview

Validation study demonstrates dual-frequency radar improves resolution and penetration for pavement voids, suggesting more reliable urban hazard detection.

Key Points

To evaluate a dual-frequency ground-penetrating radar framework designed to balance penetration depth and vertical resolution for detecting subsurface road pavement defects.
Simulated electromagnetic responses to establish characteristic radar signatures of pavement voids and loose zones.
Collected and analyzed field validation data using 1.6 GHz and 400 MHz dual-frequency radar across a roadway in Guangxi Province, China.
High-frequency (1.6 GHz) signals achieved high vertical resolution for shallow defects (<3 m depth), delineating small anomalies and thin layers.
Low-frequency (400 MHz) signals provided higher signal-to-noise ratios and reliably identified deeper defects (>3 m depth).
Synergistic integration of both frequencies enabled precise characterization of defect geometry, burial depth, and lateral extent.

Cite This Study

Xiong et al. (2026) studied this question.

synapsesocial.com/papers/6a8563fe03308d306e2d76f3 https://doi.org/10.1190/int-2025-0035

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