Title :
Physical limitations on detecting tunnels using Underground Focusing Spotlight Synthetic Aperture Radar
Author :
Martinez-Lorenzo, Jose A. ; Rappaport, Carey M.
Author_Institution :
Gordon CenSSIS, Northeastern Univ., Boston, MA, USA
Abstract :
This work studies the concept of Underground Focusing Spotlight Synthetic Aperture Radar (UF-SL-SAR) systems for tunnel detection applications. A general formulation for generating UF-SL-SAR imaging in realistic, randomly rough ground is developed by focusing in space and frequency at subsurface points by considering rays refraction at the nominal ground surface. Imaging results are presented for two soil scenarios: dry sand and moist clay loam. It is demonstrated that the tunnel is successfully imaged only for the sand case.
Keywords :
clay; geophysical image processing; object detection; radar detection; radar imaging; sand; soil; synthetic aperture radar; terrain mapping; tunnels; UF-SL-SAR system; dry sand; ground surface; moist clay loam; randomly rough ground; ray refraction; tunnel detection; underground focusing spotlight synthetic aperture radar; Radar detection; Synthetic aperture radar; Rough Surfaces; Signal Processing; Synthetic Aperture Radar (SAR);
Conference_Titel :
Geoscience and Remote Sensing Symposium,2009 IEEE International,IGARSS 2009
Conference_Location :
Cape Town
Print_ISBN :
978-1-4244-3394-0
Electronic_ISBN :
978-1-4244-3395-7
DOI :
10.1109/IGARSS.2009.5416911
