Title :
Electromagnetic inversion in monostatic ground penetrating radar: TEM horn calibration and application
Author :
Gentili, Gian Guido ; Spagnolini, Umberto
Author_Institution :
Dipartimento di Elettronica, Politecnico di Milano, Italy
fDate :
7/1/2000 12:00:00 AM
Abstract :
A comprehensive analysis of electromagnetic (EM) inversion applied to pavement profiling by using a monostatic ground penetrating radar (GPR) is presented. Since in GPR systems using transfers EM (TEM) horns, the antenna is positioned close to the the investigated medium and a strong EM interaction occurs. This effect is taken into account by modeling the antenna with equivalent sources placed on the aperture section and by using an accurate EM modeling within the inversion loop in order to account for the contribution of near-field effects. Experimental results on the antenna modeling procedure and on a pavement profile estimation validate the feasibility of both the calibration and the inverse problem proposed
Keywords :
buried object detection; calibration; geophysical techniques; horn antennas; radar antennas; remote sensing by radar; terrain mapping; terrestrial electricity; GPR; TEM horn calibration; antenna; buried object detection; electromagnetic inversion; geoelectric method; geophysical measurement technique; ground penetrating radar; inverse problem; inversion loop; land surface; monostatic; near-field effect; pavement profiling; radar remote sensing; terrain mapping; terrestrial electricity; transfers EM horns; Asphalt; Bandwidth; Calibration; Concrete; Dielectric constant; Frequency; Ground penetrating radar; Radar antennas; Road transportation; Space vector pulse width modulation;
Journal_Title :
Geoscience and Remote Sensing, IEEE Transactions on
