SARPROZ ©

can u attach the ext DEM in SAR coordinates? (fourth time)

This issue is similar to the problem reported here:
https://www.sarproz.com/groups/sarproz-group/forum/topic/issue-related-to-mcr-component-cache/
delete the folder containing the cached version of main, as described there

The error here described is currently under investigation of the Matlab support. Updates will be posted here:
https://www.sarproz.com/groups/sarproz-group/forum/topic/sentinal1-coregistration-problem/

This is to confirm that this problem: “Warning: Could not find appropriate function on path loading function handle” during the coregistration is a problem appeared in MATLAB 2018a. We have informed the MATLAB support and waiting for their answer. In the meanwhile please either use an older MATLAB version or use the compiled version of Sarproz.…[Read more]

you can change the master, so, it will work for any subset of images (just remember that the temp baselines limits are always relative to the chosen master)
an other way is to manually split your data-stack. to do that, you have to remember 3 things:
– the list of images is stored in dataset.text, DATASET_INFO folder
– the data itself is in the…[Read more]

Hi Antig,
the non-linear model is a time filter (the movement is smoothed out of the displacement phase). This implies a series of things: the result is more flexible and will match more the displacement phase. If the displacement has a non-linear smooth behavior, the model works great. If the displacement is noisy, the model will be more affected…[Read more]

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Hi Gido,
we are investigating the reason (it’s depending on an undocumented update of matlab).
we hope to find soon the solution
best

we were not aware of this situation, we need to investigate it.
please next time spend a bit of time to check spelling and english expressions

no evident phase jumps

If you are using Sentinel it can be problematic.
Check the interferograms.
In case, you can manually modify your set of points used for the coregistration and mask out the sea. I do not think anyway that this is the problem. More probably, the problem is the size of the island. Is the satellite footprint including other land nearby the island? If…[Read more]

Hi Eszter,
yours is a particularly complex case.
Non-linear movements can be well estimated with the smart option that you selected. The smart option in fact applies a low pass filter in time. However, given the more degrees of freedom, the smart option requires more images than usual to be robust: 13 is a too low number.
In any case, an…[Read more]

we do not answer such messages.
read the forum rules.

two possibilities:
1. either the orbit of that image is pretty bad (and what you see there are fringes due to the wrong geometry)
2. or that image is very noisy (maybe because of a storm) and what you see there is the result of noise fitting

you miss some of the toolboxes listed here: https://www.sarproz.com/pcodes-instructions/

if you process your data with the STAR graph,
you look for good and stable targets in time, which usually are also little affected by geometric decorrelation.
You could be in an area with average little spatial coherence but with a few sparse stable targets (like sparse isolated houses in the countryside) and everything would work.
so, when you…[Read more]

Hi Venera,
your APS processing looks good. After that, you have to process more points to get denser results. You can do it either in the MISP or in the GAR (Graph Analysis and Refinement) modules.
Options that you can try in case you cannot get results in your are of interest:
+ using a non-linear model for the deformation (input the number 5 in…[Read more]

are you starting matlab with the -noDisplay option? remove it. check the following
http://www.mathworks.com/help/matlab/release-notes.html#br5ktrh-3