Unwrapping Small area by Snaphu

Microwave Toolbox
1

Hello All,
I am trying to estimate subsidence of a small area using SNAP and just after I unwrap my image using Snaphu, it ignore the deformation because the area is big and it’s over-smooth the surface.
So I decided to take a small subset and It gave me an error message .

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16118515_1297256050332114_496430279_n.jpg617×625 39.2 KB

I am sure 100% that is an earth deformation, I think I must to find another way to unwrap the phase change.

Please can anyone share or have an idea or solution to unwrap small area ?

My best regards

1 Like
2

Is it possible that the deformation is so fast that the phase has been aliased? The bright ring around the deformation looks suspicious…

3

yes it is looks another phase with a large slope.

here is with another time

11.jpg612×586 70.6 KB

4

did you use MCF or MST? You can edit it directly in the snaphu.conf file and try with the other option. Maybe this preserves this area better.

2 Likes
5

What is the difference between MCF and MST? Thanks

6

This is explained in the documentation and the corresponding papers.
https://web.stanford.edu/group/radar/softwareandlinks/sw/snaphu/