Oğuz, UğurGürel, Levent2016-02-082016-02-0819970272-4693http://hdl.handle.net/11693/27711Date of Conference: 13-18 July 1997Conference Name: Antennas and Propagation Society International Symposium, IEEE 1997A three-dimensional finite-difference time-domain method that employs pure scattered-field formulation and perfectly matched layers (PML) as the absorbing boundary condition is developed for solving subsurface-scattering. A subsurface radar is modeled and the fields scattered from various buried objects with different parameters such as the size, depth, and number are observed and distinguished. The `derivative' signal, which can easily be obtained in practical systems, is useful in identifying the buried objects.EnglishBoundary conditionsComputer simulationDielectric materialsFinite difference methodInterfaces (materials)Mathematical modelsPermittivityTime domain analysisAbsorbing boundary conditions (ABC)Finite difference time domain (FDTD) methodPerfectly matched layers (PML)Electromagnetic wave scatteringConference Paper10.1109/APS.1997.631711