TY - RPRT TI - GPR Imaging for Deeply Buried Objects: A Comparative Study Based on FDTD Models and Field Experiments AU - Tilley, roger AU - Dowla, Farid AU - Nekoogar, Faranak AU - Sadjadpour, Hamid PY - 2012 UR - https://ntrs.nasa.gov/citations/20130008669 ID - 20130008669 ER -