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Some Issues With Using Radiative Transfer Approach to Scattering From Layered Random Media With Rough Interfaces

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1 Author(s)
Mudaliar, S. ; Sensors Directorate, Air Force Res. Lab., Hanscom AFB, MA, USA

The radiative transfer (RT) approach is widely used in applications involving scattering from layered random media with rough interfaces. Although it has been successful in several disciplines it is well known that this approach involves certain approximations. In this paper these assumptions and approximations are reexamined. To enable this a statistical wave approach is employed to this problem and the governing equations for the first and second moments of the wave functions are derived. A transition is hence made to arrive at a system of equations corresponding to that of the RT approach. It is hence found that more conditions are implicitly involved in the RT approach than generally believed to be sufficient.

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Antennas and Propagation, IEEE Transactions on  (Volume:57 ,  Issue: 11 )