I am facing the same problem - I also get the same warning in StaMPS step 3:
Warning: Not enough random phase pixels to set gamma threshold - using default threshold of 0.3
> In ps_select (line 184)
In stamps (line 356)
PS_SELECT: Initial gamma threshold: 0.300 at D_A=0.07 to 0.300 at D_A=0.41
PS_SELECT: 0 PS selected initially
PS_SELECT: Reestimation gamma threshold: 0.300 at D_A=0.07 to 0.300 at D_A=0.41
PS_SELECT: 0 ps selected after re-estimation of coherence
No PS points left. Updating the stamps log for this*
I am a bit suspicious due to the output of step 2:
Is there suggested solution to this?
I have already looked into the MAINSAR user group as well, where a similar thread didn’t provide a definite answer.
There isn’t any water in the study area, and lowering the value for
filter_grid_size parameterdidn’t result in any change either.
Data preparation for the study area has been done through SNAP and running the modified mt_prep_gamma_snap.
Any assistance would be appreciated.