A Novel 3D Imaging Method for Airborne Downward-Looking Sparse Array SAR Based on Special Squint Model

Table 1

Parameters used for simulation.

Parameter	Value
Carrier frequency	37.5 GHz
Pulse bandwidth	300 MHz
Pulse repetition frequency	1024 Hz
Chirp duration	1.0 s
Radar height	500 m
Radar velocity	50 m/s
Number of transmitting antenna elements	4
Number of receiving antenna elements	32
Azimuth beam width	0.57^°
Cross track beam width	12^°