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Comparative Study of GPR Acquisition Methods for Shallow Buried Object Detection

Authors :
Primož Smogavec
Blaž Pongrac
Andrej Sarjaš
Venceslav Kafedziski
Nabojša Dončov
Dušan Gleich
Source :
Remote Sensing, Vol 16, Iss 21, p 3931 (2024)
Publication Year :
2024
Publisher :
MDPI AG, 2024.

Abstract

This paper investigates the use of ground-penetrating radar (GPR) technology for detecting shallow buried objects, utilizing an air-coupled stepped frequency continuous wave (SFCW) radar system that operates within a 2 GHz bandwidth starting at 500 MHz. Different GPR data acquisition methods for air-coupled systems are compared, specifically down-looking, side-looking, and circular acquisition strategies, employing the back projection algorithm to provide focusing of the acquired GPR data. Experimental results showed that the GPR can penetrate up to 0.6 m below the surface in a down-looking mode. The developed radar and the back projection focusing algorithm were used to acquire data in the side-looking and circular mode, providing focused images with a resolution of 0.1 m and detecting subsurface objects up to 0.3 m below the surface. The proposed approach transforms B-scans of the GPR-based data into 2D images. The provided approach has significant potential for advancing shallow object detection capabilities by transforming hyperbola-based features into point-like features.

Details

Language :
English
ISSN :
20724292 and 69539413
Volume :
16
Issue :
21
Database :
Directory of Open Access Journals
Journal :
Remote Sensing
Publication Type :
Academic Journal
Accession number :
edsdoj.0544b69539413ea2e4639d55bab346
Document Type :
article
Full Text :
https://doi.org/10.3390/rs16213931