I want to know if we can create interferograms using two different SAR satellites? the satellites must have different orbit and phase?
Hello,
Cross interferogram can be computed using ERS and ENVISAT data.
it sounds strange ! interferometry calls for a coherent processing that is related to different acquisitions at the same carrier frequency !
apart from sar constellations where identical sars are mounted on different satellites, but this is not the case of ers and envisat
As previously stated, InSAR requires coherence between SAR images. This is the same problem as another SAR exploitation technique, namely Coherent Change Detection (CCD), which after all is just the coherence map. Relating coherence to collection requirements can be found in several reports and papers, e.g. search for "Collecting and Processing Data for High Quality CCD Images.
mmmh researchgate brought up this 4-years old question to me... hope someone could still find the following links useful....
https://www.sarproz.com/wp-content/papercite-data/pdf/perissin-vtswspwepcc2006.pdf
https://www.sarproz.com/wp-content/papercite-data/pdf/perissin-appaius2007.pdf
https://www.sarproz.com/wp-content/papercite-data/pdf/perissin-utrbmorssi2007.pdf
Well, ERS and Envisat had worked in TanDEM constellation (only 23 minutes apart if I remember correctly), and many works were presented in Crossed InSAR studies.
Differences in frequency carriers were compensated by larger Bperp between both satellites.
Please check as for example D. Perissin's paper above.
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