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Modeling Interferogram Stacks
2007
IEEE Transactions on Geoscience and Remote Sensing
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The dispersion of the optimal estimate of a subsidence motion is determined, and compared with that of Permanent Scatterers, when the targets are progressively decorrelating due to Brownian motion. Approximately, with N consecutive images and revisit time T, the interferogram stack results are equivalent to PS's, if the pixel count in the window grows with N²T, independently of the frequency. In the case of Sentinel -1, it is possible to expect that, in lightly vegetated areas and in one year
doi:10.1109/tgrs.2007.902286
fatcat:5kurux4iube2zgyjavp7ykbhfi