Can data from different satellites be used together to create differential interferograms and apply the PS Technique?
In general, every radar satellite works on different wavelengths, frequencies, polarizations, orbital paths, etc; it is therefore impossible to merge data from different radar systems and use it to create differential interferograms. In case of ERS though, ERS-1 and ERS-2 data can be merged, because the two sensors are identical. The PS Technique can nevertheless be successfully applied to datasets acquired by various satellites, provided that the dataset consists of acquisitions of the same sensor or of an identical sensor.
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