Remarks on the Radiative Transfer Approach to Scattering of Electromagnetic Waves in Layered Random Media
Final rept. 1 Oct 2006-30 Sep 2009
AIR FORCE RESEARCH LAB HANSCOM AFB MA SENSORS DIR/ELECTROMAGNETICS TECHNOLOGY DIV
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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 applications in various disciplines, it is well known that this approach involves certain approximations. In this document 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.
- Radiofrequency Wave Propagation