SARPROZ ©

Sarproz ingests SAR data, DEM data, orbital data, and outputs a wide range of results in SAR and geographic coordinates.
It is totally indepedent, so that you can start with a SAR image and get a usable result, to be displayed in any GIS environment.
Also, Sarproz can import SAR data pre-processed with other software (check the manual for…[Read more]

This is a segmentation violation, which means, your system is not stable and it is somehow conflicting with Matlab.
Some messages related to the audio drivers might indicate that the problem is there.
For what concerns Sarproz, if the audio drivers have issues, you should solve the problem by unchecking the “play audio” box in here…[Read more]

We have migrated to a new server.
We will release soon a new update with the new server reference
More news on the forum
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option nr 1: you create your custom grid at the beginning (initial mask) and you just keep it
option nr 2: to avoid possible wrong residual height estimation you force it to zero (geo localization is dependent on height)
option nr 3: you use the filter/matrix visualization feature in scatter plot and you output your result in geo coordinates
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nothing is wrong. yours is the simplest and most straightforward approach for analyzing a small area.

The message is not a problem. The coherence file is created after the coherence is saved. The coherence is the output of the mutli-temporal/time series analysis.
More attention deserves the progress bar. Please check if you get other kind of messages. It could be a network problem: try for a moment to stop anti-viruses or firewalls or similar and…[Read more]

if you have a very good dataset, many images, regular time sampling, good normal baselines dispersion, stable and robust estimation, then go directly with the non-linear model.
if your dataset is not ideal, not many images, not so robust and so on, go with the linear model. then only if you notice problems, you can run a non-linear estimation,…[Read more]

1. the atmosphere here has nothing to do. if you use the smart function, the linear phase won’t be removed. However, you still have the option to remove it, by choosing “read” on the corresponding line. Clearly, to read it from the disk, you must have previously processed and saved it.
2. if the non-linear model is obtained with a low pass filter,…[Read more]

you need to update the software

As mentioned to you by email, you need to reproduce the error with the compiled version to allow debugging it
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Each situation is specific, depending on the area, the data, the objective of the analysis.
I am not going to comment on your case, which would require analyzing many things.
A simple general statement: this website contains a decent amount of information about the QPS approach.
I am reporting here a single link, but there are many more:…[Read more]

We are just terminating a major update exactly to allow removing wide atmospheric effects and highlight local landslides. Wait maximum an other couple of weeks.

You can plot the estimated APS from the APS module https://sarproz.com/manual/elabora_atmo.html
you can also plot the APS by selecting “choose a real file” in the “plot paramters” module and then browsing to the APS folder https://sarproz.com/manual/plot_par.html
You can also plot an interferogram by removing the estimated APS in the “Single…[Read more]

that’s something we need to check looking at your data then

Did you plot the interferograms?

That module generates an MT adaptive mask, it does not calculate interferograms.
When you have the adaptive mask, you can use it to filter interferograms.
There is a preset in the InSAR processing options: “multi-temporal apdative”
https://sarproz.com/manual/mt_adaptive_mask.html
https://sarproz.com/manual/insar_params.html
after you get your…[Read more]

this is a case where the warning is actually useless, sorry for that
basically the writing function is set to launch a warning when NaNs are inputed (it can be indicative of some issues),
however, in this case NaNs are kept by construction at the borders of the image
you can proceed further, there should be no problem
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we would need to see the full log to try to understand.
you might even need to flag the debug mode to pinpoint the step where the message is given
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There is not much more to add. Take a bigger reference window, lower the SNR and the correlation thresholds, lower the minimum number of points. are you processing the full frame? if not, do it.
but the question is: what are you using these data for? for sure, no interferometry will be possible.
if you just want to plot the amplitude, you can…[Read more]

1. next time zip the log before attaching it
2. next time read the messages from the sw. if you do what the sw tells you to do, we all save time. specifically, the sw told you to manually unzip the downloaded orbits files
3. you have also the option to do things manually. read well the link you posted:…[Read more]