This dissertation deals with propagation channel modelling, namely the characterisation of a diffuse reflection of an electromagnetic wave in a given surface. (...)Keywords: mobile communications; millimetre-waves; ray tracing, specular and diffuse reflection; kirchhoff; field perturbation; phase perturbation; full waveM.S., 1997more info. http://opac.ua.pt/F/?func=find-b&find_code=SYS&REQUEST...
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