%0 Journal Article
%T Image-Based RCS Estimation from Near-Field Data
%J Journal of Imaging | An Open Access Journal from MDPI
%D 2019
%R https://doi.org/10.3390/jimaging5060061
%X This paper deals with the problem of estimating the RCS from near-field data by image-based approaches. In particular, a rigorous focusing procedure based on a weighted adjoint scheme, which is also applicable to an arbitrary measurement curve, is developed. The developed formalism allows us to address the important question concerning the need to employ a multi-frequency configuration to estimate the RCS. Accordingly, it is shown that if RCS is required at a given frequency, then the target image obtained solely at such a frequency can be exploited provided that the spatial truncation arising from the size of the investigated area is properly taken into account. View Full-Tex
%U https://www.mdpi.com/2313-433X/5/6/61