3.5 Multilooking
Due to different spatial resolutions in range and azimuth directions,
speckle noise adds up and leads to a lot of speckle in the
imagery(Fawwaz T. Ulaby, F. Kouyate & Williams, 1986). To overcome this
noise and generate square pixels, multilooking is carried out. In this
study 14.15m was the resultant spatial resolution of the multilooked
image(Yang et al., 2011).