Ground-penetrating radar (GPR) is a geophysical method that uses radar pulses to image the subsurface. It is a non-intrusive method of surveying the sub-surface to investigate underground utilities such as concrete, asphalt, metals, pipes, cables or masonry. [1]

Q: What is Signal-to-Noise Ratio (SNR) in GPR? A: Signal-to-Noise Ratio (SNR) is a key indicator of signal quality, representing the ratio of useful information to noise in the signal. SNR is typically expressed in decibels (dB) , with higher SNR indicating a stronger signal relative to noise and better signal quality.

Here, we present the fundamental principles which govern ground penetrating radar (GPR) signals. As you will see, many of the basic fundamentals which are used to describe seismic methods can also be applied to GPR.

2024年5月8日 · Ground penetrating radar (GPR) is an electromagnetic geophysical method that transmits radio wave pulses at select center frequencies into the ground to study the subsurface. GPR capitalizes on the effects that the electrical properties of matter (i.e., dielectric permittivity , electrical conductivity , and magnetic permeability ) have on ...

2022年6月24日 · Thanks to its non-destructive, high-resolution imaging possibilities and its sensitivity to both conductive and dielectric subsurface structures, Ground-Penetrating Radar (GPR) has become a widely recognized near-surface geophysical tool, routinely adopted in a wide variety of disciplines.

2017年3月1日 · Within the various NDTs employed in road surveys, ground-penetrating radar (GPR) is nowadays established as one of the most effective and powerful, due to its high flexibility of usage and reliability of results.

2015年4月17日 · In this letter, we apply a time and frequency analysis method based on the complete ensemble empirical mode decomposition (CEEMD) method in ground-penetrating radar (GPR) signal processing. It decomposes the GPR signal into a sum of oscillatory components, with guaranteed positive and smoothly varying instantaneous frequencies.

2019年6月26日 · Abstract: Ground-penetrating radar (GPR) is a common technique for evaluating the structure and quality of civil engineering materials. The ever-increasing demand for higher GPR time resolution and better interpretation of GPR data has motivated the use of advanced signal processing methods for GPR applications.

2023年2月13日 · Ground penetrating radar (GPR) is a geophysical locating method that uses radio waves to capture images below the surface of the ground in a minimally invasive way. The huge advantage is that it allows crews to pinpoint the location of underground utilities without disturbing the ground.

GPR is used for both target detection (i.e. detecting abandoned USTs, utilities, drums, burials, archaeological artifacts, etc.) and for characterizing the subsurface stratigraphy, water-table, or geology in hydrogeological, environmental, and geotechnical site characterizations.