Research Article

A Bistatic Imaging Method for GEOSAR in the Strip Mode and UAVSAR in the Steering Beam Mode

Table 3

Imaging qualities of the multipoint targets (P1, P5, and P9).

Receiver modeLocation of point targetsRangeAzimuth
PSLR (dB)ISLR (dB)Resolution (m)PSLR (dB)ISLR (dB)Resolution (m)

SpotlightP3−13.27−9.261.95−13.79−9.380.16
P5−13.25−9.451.95−13.27−9.520.15
P7−13.32−9.471.95−13.76−9.540.16

Sliding spotlightP3−13.15−9.521.87−13.54−9.451.54
P5−13.23−9.511.87−13.26−9.631.40
P7−12.89−9.331.93−12.85−9.421.55

TOPSP3−13.22−9.641.87−13.34−9.452.81
P5−13.01−9.261.87−13.21−9.432.78
P7−12.84−9.621.87−13.10−9.752.80