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Finite-difference time-domain simulation of scattering from objects in continuous random media (2002)
| Content Provider | CiteSeerX |
|---|---|
| Author | Moss, C. D. Teixeira, F. L. Yang, Y. Eric Kong, Jin Au |
| Abstract | (FDTD) scheme is introduced to model the scattering from objects in continuous random media. FDTD techniques have been previously applied to scattering from random rough surfaces and randomly placed objects in a homogeneous background, but little has been done to simulate continuous random media with embedded objects where volumetric scattering effects are important. In this work, Monte Carlo analysis is used in conjunction with FDTD to study the scattering from perfectly electrically conducting (PEC) objects embedded in continuous random media. The random medium models under consideration are chosen to be inhomogeneous soils with a spatially fluctuating random permittivities and prescribed correlation functions. The ability of frequency averaging techniques to discriminate objects in this scenarion is also briefly investigated. The simulation scheme described in this work can be adapted and used to help in interpreting the scattered field data from targets in random environments such as geophysical media, biological media, or atmospheric turbulence. Index Terms—Buried random objects, FDTD methods, Monte Carlo methods, random media. I. |
| File Format | |
| Volume Number | 40 |
| Journal | IEEE Trans. Geosci. Remote Sens |
| Language | English |
| Publisher Date | 2002-01-01 |
| Access Restriction | Open |
| Subject Keyword | Continuous Random Medium Finite-difference Time-domain Simulation Embedded Object Monte Carlo Analysis Fdtd Method Random Medium Model Random Rough Surface Random Medium Fdtd Technique Monte Carlo Method Atmospheric Turbulence Homogeneous Background Scattered Field Data Simulation Scheme Biological Medium Prescribed Correlation Function Index Term Buried Random Object Random Environment Inhomogeneous Soil Fluctuating Random Permittivities Volumetric Scattering Effect Geophysical Medium |
| Content Type | Text |
| Resource Type | Article |
