Cj. Leuschen et Rg. Plumb, A matched-filter-based reverse-time migration algorithm for ground-penetrating radar data, IEEE GEOSCI, 39(5), 2001, pp. 929-936
Citations number
20
Categorie Soggetti
Eletrical & Eletronics Engineeing
Journal title
IEEE TRANSACTIONS ON GEOSCIENCE AND REMOTE SENSING
Ground-penetrating radar (GPR) is a remote sensing technique used to obtain
information on subsurface features from data collected over the surface. T
he process of collecting data may be viewed as mapping from the object spac
e to an image space. Since most GPRs use broad beamwidth antennas, the ener
gy reflected from a buried structure is recorded over a large lateral apert
ure in the image space. Migration algorithms are used to reconstruct an acc
urate 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 scatterin
g theory is used to develop a matched-filter response for the GPR problem.
The reverse-time migration algorithms, developed for both bistatic and mono
static antenna configurations, are implemented via FDTD in the object space
. Several examples are presented.