SARPROZ ©

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
best

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
best

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]

The first series are the values coming from the processed phase. The second series are the values coming from the module you adopted for processing
best

Sarproz estimates a residual phase that can be attributed to the Master image.
I do not fully understand your meaning. Let’s say you have Image0 as Master and you get a low coherence at Image0. Then you change the reference image and you set Image1 as your Master. In this second case, which one is getting a low coherence value, Image0 or Image1…[Read more]

yes void/nan values are interpolated

Your case needs to be debugged. Please arrange installing teamviewer 10 and let’s schedule a remote connection by email
best

Option A. just check the folder where data/results are saved. if your result is a full matrix, you will find also a jpeg image. E.g. in FITTED you find jpegs of each image. For map changes (in RESULTSCHDETECT), if they have been filtered, most of the area is zero, they are saved as sparse mat files, you can load them in matlab.

Option B. you…[Read more]

It looks like somehow my previous answer to this post went lost…
In your recap you list 3 main steps.
The first 2 are common to all Time-Series approaches.
The third one corresponds to the classic Persistent Scatterers method.
If you want to apply other methods, you might need to process interferograms first.
Also, in some cases you do not use…[Read more]

the default value of linear deformation trend is -100 / 100 mm/year.
when you estimate the def trend in the APS processing, you estimate it between close points (the network connections). So, -100 / 100 is already a pretty big range.
in any case, if you have no previous knowledge, the histograms and all plots you get after the processing will help…[Read more]

that’s just a matter of spatial sampling. use the scatter plots module, filter/matrix visualization function to decide how to re-sample plots. you find some examples in the tutorials
best

please read the forum rules

The only weather variable that is actually used in an operational and quantitative way is the temperature. Temperature is used if you decide to estimate the thermal expansion from your phase time series. If you do not estimate the thermal expansion, your results won’t be affected.

from your log:
selected reference S: 6154 L: 2181, Temp Coher: 0.98, Sp Coher:
The software cannot tell you the value of the spatial coherence (the coherence map https://sarproz.com/manual/save_coher_map.html) because it is missing.
this is not going to cause any problems.
if you want to see that number or if u want to see the Coherence Map,…[Read more]

phase2height and phase2flat constants are automatically generated when needed.
if you check the log, you will find it written.

1.4.2.5 is coregistration refinement and you should NOT run it in normal conditions https://sarproz.com/manual/coreg_refine.html

APS estimation (1.4.8.1) + Sparse Points processing (1.4.8.3) is the standard approach.…[Read more]

We have already answered you by email.
You have to process the two subswaths separately. And the tutorials are online.
For additional help, please contact the Sarproz people in your area.

You are right, also Matlab 2017b has the same bug

You have the following options:

A) install an other Matlab version (e.g. 2017a, 2018b or any other)

B) install the Sarproz compiled version

C) keep your current Matlab version but disable the parallel pool when doing the coregistration (it means the coregistration will run on a single CPU core)