414 
Fig. 8: The signal to noise ratio across the imaged 
strip in the SCANSAR mode on grasses using HH 
polarization and 400 W average transmitter power. 
The increased swath width is indicated by the "3 
beam width illumination”. The assumed 
backscattered energy is derived from the empirical 
equations for grasses and HH polarization 
published in [1]. 
Fig. 10: the average transmitter power required to 
achieve a 10 dB signal to noise ratio on trees using 
HH polarization across the sensors access range. 
2.0 
CD 
T3 
I 0.5 - 
T5 
O 
(X 
........ ■ 
30 32 34 36 38 40 
Incidence Angle [deg] 
Fig. 9: The radiometric resolution across the 
imaged strip for the SCANSAR operation of Fig. 8 
using 4-look processing (about 30 m resolution). 
Fig. 11: The same as Fig. 10 except using VV 
polarization instead of HH polarization. 
Fig. 12: The same as Fig. 10 except using HV 
polarization instead of HH polarization.