Multimode/Multifrequency Low Frequency Airborne Radar Design

Table 3

Nominal performances.

	Sounder	SAR-Low	SAR-High
Across track resolution	10–100 m	N/A	N/A
Range resolution (free space)	15 m	3.75 m (stepped)	1.87 m (stepped)
Along track resolution	7–75 m @ 800 m	4.8 m @ 4 looks	2.5 m @ 2 looks
	27–280 m @ 3000 m.
Penetration depth	100 m (moderate attenuation)	Foliage penetration	No penetration
Maximum swath (geometrical)	2000 m @ 800 m	7400 m @ 1000 m	1500 m @ 1000 m
	7000 m @ 3000 m
NESZ	−95 dB @ 800 m	−80 dB	−70 dB
	−70 dB @ 3000 m	−64 dB	−54 dB
AASR	N/A	No appreciable; at chosen PRF	No appreciable at chosen PRF
RASR	N/A	−55 dB	−62 dB