MODELLING RADAR REFLECTION IN NEIGHBORING MEDIA IN VIEW OF INDUCED BACKWARD-GOING WAVES
This paper formulates a rigorous theory about backreflection in neighboring homogeneous absorbing media. The theory is developed on the basis of a multimode wave reflection and refraction mechanism which includes not only the known modes (the reflected and the refracted ones), but also the backward-going modes. The paper demonstrates that backreflection is defined by radiation of secondary sources. Therefore, it exists both in the case of both even and rough boundaries. For the first time a rigorous formula for defining a backscattering coefficient in neighboring absorbing media is devised. The result has been compared to the experimental evidence. There is a good agreement between the data.