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

Figure 11

Case  2: observation of edge with reflected rays incident 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 and position of antenna (black circle).

(a)

(b)

(c)

(d)