SARPROZ ©

We are working at stitching subsequent images together. Up to now Sarproz never did it, we always worked with single footprints.
The reason for renaming images acquired on the same day was a quick and dirty solution for managing TanDEM-x bistatic pairs without changing the naming convention.
What you can do at this moment is working on them…[Read more]

hi there, apparently there’s a problem with renaming the Sentinel-1 images with the same dates.

when the duplicates are deleted from SLC directory, it is possible to continue with proccesing.

lasterror.mat and log files attached

cheers

Thanks for your suggestion. I am trying, ‘Height’ here mean the accumulative height, doesn’t it?

the “smart” function implements a non-linear analysis, so, it is clear that the linear velocity will not be estimated
use the Cumulative displacement instead.
consider anyway that here the key point is the estimation of the height.
after the smart, you could repeat the analysis reading the height previously estimated and estimating a new linear…[Read more]

Dear Prof.Daniele

Please, Find attach error file below

Best Regards,

Ana

1. that is no “software error”. it’s a message about terms called “master error” and “reference error”. if the software returns an error you get the usual messages “an error occurred … lasterror.mat was saved …”
2. probably you clicked on a pixel which is not a PS. but as I can see from that attachment, a PS IS selected and its parameters ARE…[Read more]

Dear Prof.Daniele

From the problem above, It is SOLVE and OK.

But, After I re-processing my data, Any problem occur.
I used 20 ENVISAT ASAR image and using STAR-graph (before I used MST-graph).
In Site Processing toolbox, I have done and have very good result based on coherence graph (See image).
I want to generate Geocoding, it’s mean I must…[Read more]

I think I made a mistake, it was the logical cores…

I am afraid this is an overfitting case.
I suppose you do not have many images, so, in such case I do not suggest you to estimate the thermal expansion.
Also, keep height and velocity ranges small in the APS estimation.
Better you remove high points when estimating the APS.
The APS estimation process should be kept as simple as possible. Later in…[Read more]

I am tempted to answer in the following way:
whatever the initial PSC you select, there is no better way to identify the good targets as with the temporal coherence. That is, the best way to state if a point is reliable or not is to look at the phase dispersion after analyzing the connections. With “analyzing the connections” I mean processing the…[Read more]

Hi Anarizka,

1) Here my personal suggestion about your first question. The best way to understand the goodness of your results (both preliminary and final) is based on the knowledge about the process you are investigating. You should address your specific case study (landslide? subsidence? localised structural issues?) being driven by a general…[Read more]

I am running with your suggestion, it will take quite a while, hope it works.

DataSet Selection –> Advanced Parameters –> disable “Play Sounds”
let me know if this solves your issue

Dear Prof.Daniele

I would like to ask,
1. based on what we can conclude that SAR has good results and can use the APS options ( IP , IR , Tri.IR ) in the area of ​​the case study ? Can you attach some paper / reference, in order to we can understand more each parameter. It is not enough to judge like your say that “the APS looks ok and the tes…[Read more]

What do you mean that this is wrong? How can you say it’s wrong?
Don’t be afraid that a temporal noise in this case is not corresponding to a spatial noise.
In space you are applying several smoothing operations (interferogram filtering, unwrapping, APS estimation)
so, it is reasonable to expect a spatial correlation in the results
the problem is…[Read more]