Precision Imaging of Frequency Stepped SAR with Frequency Domain Extracted HRRP and Fast Factorized Back Projection Algorithm

Table 1

Simulation parameters.

Simulation parameters	Values
Reference carrier frequency (GHz)	3
Number of subpulse per burst	301
Frequency step (MHz)	0.5
Pulse width (us)	2
Azimuth beam width ()	1.91
Platform height (km)	8
Platform velocity (m/s)	150
Reference slant range (km)	11
Sampling frequency (MHz)	15
Repetition frequency of burst (Hz)	831
Repetition frequency of subpulse (KHz)	250
Scene size-range (m) × azimuth (m)	300 × 300
Target scene	3 × 3; Point array
Ground resolution-range (m) × azimuth (m)	1.5 × 1.5