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the structure, i.e., higher coherence of the phase of return signals will be preserved. In Figure 14.5,
it is visible that the temple structure, which is a man- made feature, has very high coherence. The
vegetation, which changes with respect to weather, has less coherence. The moat, which contains
water, shows much less coherence. The Angkor Wat galleries, pathway, and western entrance can be
detected from the coherence image.
Figure 14.6(a) shows the phase of the interferogram of Angkor Wat in the X- band TerraSAR- X
data. TerraSAR- X and TanDEM- X are twin satellites that can acquire ...