Indoor Operations by FMCW Millimeter Wave SAR Onboard Small UAS: A Simulation Approach

Figure 10

Case  1: observation of edge without reflections impinging on antenna. (a) Radar echoes due to backscattering only, after FFT; (b) difference between radar echoes due to both reflections and backscattering and echoes due to backscattering, after FFT; (c) ray geometry, with magnified area highlighted in black; (d) magnification of ray geometry.

(a)

(b)

(c)

(d)