Analog Beamforming and Digital Beamforming on Receive for Range Ambiguity Suppression in Spaceborne SAR

Table 1

Simulation system parameters.

Parameters	Value
Sensor height	700 km
Carrier frequency	9.65 GHz
Size of the whole antenna (az. × el.)	15 m × 0.72 m
Number of subapertures (az. × el.)
Number of T/R modules (az. × el.)
Pulse duration	80 s
Pulse bandwidth	500/350/240 MHz
Peak power	64 kw
Looking angle	18°~53°
Swath width	100 km
Overlap between adjacent swaths	5%