Elimination of leakage and ground-bounce effects in ground-penetrating radar data

We address the problem of removing specular ground surface reflections and leakage/cross-talk from downward looking stepped frequency ground-penetrating radar (GPR) data. A new model for the ground-bounce and the leakage/cross-talk is introduced. An algorithm that jointly estimates these effects fro...

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Bibliographic Details
Published inProceedings of the 11th IEEE Signal Processing Workshop on Statistical Signal Processing (Cat. No.01TH8563) pp. 150 - 153
Main Authors Abrahamsson, R., Larsson, E.G., Li, J., Habersat, J., Maksymonko, G., Bradley, M.
Format Conference Proceeding
LanguageEnglish
Published IEEE 2001
Subjects
Antenna measurements
Frequency
Ground penetrating radar
Minimization methods
Night vision
Object detection
Optical reflection
Radar cross section
Radar detection
Reflector antennas
TECHNOLOGY
TEKNIKVETENSKAP
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Summary:We address the problem of removing specular ground surface reflections and leakage/cross-talk from downward looking stepped frequency ground-penetrating radar (GPR) data. A new model for the ground-bounce and the leakage/cross-talk is introduced. An algorithm that jointly estimates these effects from collected data is presented. The algorithm has the sound foundation of a nonlinear least squares (LS) fit to the presented model. The minimization is performed in a cyclic manner where one step is a linear LS minimization and the other step is a non-linear LS minimization where the optimum can efficiently be found using, e.g., the chirp-transform algorithm. The results after applying the algorithm to measured GPR data, collected at a US army test range, are also shown.
ISBN:9780780370111
0780370112
DOI:10.1109/SSP.2001.955244