Microwave imaging reflectometry of corrugated metal targets

In this paper we compare conventional and imaging reflectometry systems by means of numerical simulation. A corrugated wheel is used as an approximation of the reflections by real plasma fluctuations. Our simulations prove that in the case of conventional reflectometry the correlations between the phase fluctuations of the received signal and the shape of the wheel decrease with an increase in distance from the target to the antenna, while the two-lenses imaging system shows high correlations far from the target. (author)