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Improving SCR of underground target signatures from air-launched GPR systems based on scattering center extraction

: Rial, F.I.; Uschkerat, U.


Rohling, H. ; Institute of Electrical and Electronics Engineers -IEEE-:
18th International Radar Symposium, IRS 2017 : 28-30 June 2017, Prague
Piscataway, NJ: IEEE, 2017
ISBN: 978-3-7369-9343-3
ISBN: 978-1-5090-4312-5
International Radar Symposium (IRS) <18, 2017, Prague>
Fraunhofer FHR ()

Air-launched GPR (Ground Penetrating Radar) systems have the advantage of longer standoff distances compared to traditional ground-coupled GPR systems. One important drawback of these systems is that the energy coming from targets located on the ground is significantly stronger than from underground targets, in such a way that even the sidelobes of the former are usually higher than the main lobe of the latter. The CLEAN algorithm is a widespread deconvolution method originally introduced in radio astronomy. This paper investigates the applicability of CLEAN to enhance the weak response coming from underground targets in this type of GPR systems.