Abstract
According to scaled real digital elevation maps(DEM) information,sets of single look complex(SLC) SAR images are simulated for interferometric missions,based on the SAR imaging mechanism and scattering model of two-scale rough surface. On the basis of the ant colony optimization(ACO),a novel phase unwrapping method is developed.This method is applied to the simulated sets of SAR images and real ENVISAT ASAR images of repeat-path orbits.As comparison with other conventional methods,this novel method shows advantages over existed phase unwrapping methods.
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