Title :
On polar sampling of GPR for tunneling boring machine
Author :
Jianping Wang ; Cetinkaya, H. ; Yarovoy, A.
Author_Institution :
Microwave Sensing, Signals & Syst. (MS3), Delft Univ. of Technol., Delft, Netherlands
fDate :
June 30 2014-July 4 2014
Abstract :
Forward looking imaging system with data acquisition over 2D aperture is studied. Theoretical analysis for polar sampling at the aperture is performed and the sampling constraints based on polar Fourier transform are determined. From the analysis, it can be seen that polar sampling requires equi-arc-length and uniform samplings respectively in azimuthal and radial directions to avoid the spatial spectra aliasing. Finally, numerical simulations demonstrate the validity of the analysis.
Keywords :
Fourier transforms; boring machines; data acquisition; ground penetrating radar; image sampling; numerical analysis; radar imaging; tunnelling; 2D aperture; GPR; azimuthal directions; data acquisition; equi-arc-Iength; forward looking imaging system; numerical simulations; polar Fourier transform; polar sampling constraints; radial directions; spatial spectra aliasing; theoretical analysis; tunneling boring machine; Arrays; Artificial neural networks; Imaging; circular array imaging; ground penetrating radar; planar-polar sampling;
Conference_Titel :
Ground Penetrating Radar (GPR), 2014 15th International Conference on
Conference_Location :
Brussels
DOI :
10.1109/ICGPR.2014.6970439
