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A matched-filter-based reverse-time migration algorithm for ground-penetrating radar data
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DOI：10.1109/36.921410.png)
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Ground-penetrating radar (GPR) is a remote sensing technique used to obtain information on subsurface features from data collected over the surface. The process of collecting data may be viewed as mapping from the object space to an image space. Since most GPRs use broad beamwidth antennas, the energy reflected from a buried structure is recorded over a large lateral aperture in the image space. Migration algorithms are used to reconstruct an accurate scattering map by refocusing the recorded scattering events to their true spatial locations through a backpropagation process. The goal of this paper is to present a pair of finite-difference time-domain (FDTD) reverse-time migration algorithms for CPR data processing. Linear inverse scattering theory is used to develop a matched-filter response for the GPR problem. The reverse-time migration algorithms, developed for both bistatic and monostatic antenna configurations, are implemented via FDTD in the object space. Several examples are presented.
Keyword:
finite-difference time domain (FDTD)
ground penetrating radar (GPR)
matched filter
reverse time migration
synthetic aperture radar (SAR)
期刊
IF:
8.6
论文数:
2.1W
被引数:
10.7W
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