Error through extract the DEM

shrshd · May 15, 2017, 11:09am

HELLO
i would like to know what is the problem ??
how can i solve it ?? actually, i have tried many time bu using the tutorial steps to extract that >> between both of this images ::

S1A_IW_SLC__1SDV_20170409T234707_20170409T234735_016074_01A897_ACFD
S1A_IW_SLC__1SDV_20170421T234707_20170421T234735_016249_01ADF2_68D3
the results were as the following :

image.jpg850×423 253 KB

image.jpg1004×585 513 KB

image.jpg881×586 190 KB

image.jpg975×615 175 KB

ABraun · May 15, 2017, 12:58pm

At which step does the error message occur and what were your parameters for unwrapping?

shrshd · May 15, 2017, 3:21pm

thank you for your reply >>
i used this parameters exactly >>

this problem occurred after import unwarpping … i went to need extracting the dem but this error occurred …

shrshd · May 15, 2017, 3:24pm

ABraun · May 15, 2017, 4:59pm

the term “topo_phase” in your screenshots indicates that you performed topographic phase removal.
This is only for differential interferometry and must not be done if you are intersted in DEM generation.