Investigation on Beamspace Multiple-Input Multiple-Output Synthetic Aperture Radar Data Imaging

Figure 3

A large antenna adopted in beamspace MIMO-SAR. (a) The large receive antenna is divided into multiple subapertures in both azimuth and elevation directions, and each subaperture contains lots of element antenna. (b) Intrapulse beamsteering to transmit multiple subpulses via the ABF net. (c) Sharp pencil beam to receive echoes by a real DBF processor.

(a)

(b)

(c)