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periz replied to the topic APS Estimate “Test” Results in the forum Sarproz Forum 4 years, 6 months ago
From your attachments, the best result is the linear one.
Few hints that work in general (but might not work in some particular cases):
1. when estimating the APS, better to focus on good scatterers, not affected by thermal or non-linear movement. so, using a linear model only is a good choice. you will include other more complex scatteters later…[Read more] -
periz replied to the topic PSInSAR Result Analysis in the forum Sarproz Forum 4 years, 7 months ago
hi,
to become able to recognize correlated results or to spot possible problematic signals, you need training and experience. difficult to help you much with theoretical statements. we should look at your results together and then we could give you some suggestions.
however, here some general hints:
+ it is correct to check that the peaks of the…[Read more] -
periz replied to the topic Reading slc images in matlab in the forum Sarproz Forum 4 years, 7 months ago
radar data are complex, not real
so, firstly, u cannot read complex data from jpeg files, u have to read the binary files
secondly, u have to tell “leggi” that data are complex
u do this adding a flag, according to this syntax: https://www.sarproz.com/groups/sarproz-group/forum/topic/aps-processing-4/
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periz replied to the topic discontinuous phase plot in the forum Sarproz Forum 4 years, 7 months ago
hi, check this about phase jumps: https://www.sarproz.com/groups/sarproz-group/forum/topic/burst-lines-on-interfereograms/#post-5462
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periz replied to the topic burst lines on interfereograms in the forum Sarproz Forum 4 years, 7 months ago
good that you found the solution. however, I do not suggest you to use the ampl xcorr as default. we’ll try to find out a way to use it only in case of failures.
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periz replied to the topic burst lines on interfereograms in the forum Sarproz Forum 4 years, 7 months ago
this is something we need to look at together. let’s plan a conf call via email please
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periz replied to the topic Unwrappin APS phase values in the forum Sarproz Forum 4 years, 7 months ago
hi,
1. if you want to work on data in the way you describe, you should use matlab.
2. to read data in sarproz (in matlab), you can use the “leggi” function https://www.sarproz.com/groups/sarproz-group/forum/topic/aps-processing-4/
3. using “leggi” you can directly read the original images and perform all what you need without caring about APS…[Read more] -
periz replied to the topic Exporting products in the forum Sarproz Forum 4 years, 8 months ago
infos on leggi and scrivi: https://www.sarproz.com/groups/sarproz-group/forum/topic/aps-processing-4/
u are exporting geotiff rgb, which is in uint8 values. to export floating numbers, use geotiff 32: https://sarproz.com/manual/plot_par_mod.html -
periz replied to the topic Loading reference point in the APS module using command line mode in the forum Sarproz Forum 4 years, 9 months ago
Hi Dominika,
First of all, at the moment we did not think about letting the user pass a manual reference point in the APS module in the command line mode. The sw will load the RefPoint.mat file (the default way it is usually saved), if it is working in update mode. Otherwise, it’s the sw to choose the default ref point. The reason is because in…[Read more] -
periz replied to the topic ERS data coregistration in the forum Sarproz Forum 4 years, 9 months ago
right
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periz replied to the topic ERS data coregistration in the forum Sarproz Forum 4 years, 9 months ago
there are no errors in the attachment
did you check the Doppler Centroid?
how many images are displayed in the dataset selection window? -
periz replied to the topic Error in main in the forum Sarproz Forum 4 years, 9 months ago
Thank you Vasiliki,
we realized it’s a bug introduced by a newer version of Matlab.
Just fixed it, you can download the latest pcodes version here: https://u.pcloud.link/publink/show?code=XZfXbNkZcq806plARHYTeHYX40qSauYhenuV
Keep the license.key file, it’s going to be the same.
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periz replied to the topic ERS data coregistration in the forum Sarproz Forum 4 years, 9 months ago
data have been correctly coregistered
however, it could be that the normal baseline exceeds the bn limit in dataset selection, for this reason, an image is kept out of the dataset, and the total count is less than the number of existing SLCs, for this reason the button is yellow
modify the bn limit in dataset selection
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periz replied to the topic ERS data coregistration in the forum Sarproz Forum 4 years, 9 months ago
generally speaking, u need to include the log file (zip it before attaching it)
in detail, error messages are always more informative and definitive than button colors.
if you did not get any error messages, go ahead.
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periz replied to the topic DSF parameter in the forum Sarproz Forum 4 years, 9 months ago
Please search the forum before posting questions
https://www.sarproz.com/groups/sarproz-group/forum/topic/stratified-aps-estimation/
https://www.sarproz.com/groups/sarproz-group/forum/topic/aps-estimation/ -
periz replied to the topic error, read_w_darksky: empty API! aborting in the forum Sarproz Forum 4 years, 9 months ago
please zip your files before uploading them
please include the lasterror.mat file if you have one -
periz replied to the topic No external Sentinel orbits in the forum Sarproz Forum 4 years, 10 months ago
Nureldin: you are using a 2018 version. please contact support by email to get a link to download a more recent version.
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periz replied to the topic APS processing in the forum Sarproz Forum 4 years, 11 months ago
Hi,
please refer to the online material (tutorials). For further discussion, please talk with your colleagues. There is a pretty big community of Sarproz users at the Wuhan University, including professors.
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periz replied to the topic Couldn't open main.exe in the forum Sarproz Forum 4 years, 11 months ago
as written above, you have installed the 32-bit version. please install the 64-bit instead
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periz replied to the topic SBAS Analysis in the forum Sarproz Forum 4 years, 11 months ago
Hi Gokhan,
I suggest we have a remote session. It’s difficult to give suggestions without seeing your data.
Yes, the smart analysis (non-parametric temporal filter) is a non-linear analysis and it returns the time series plus the cumulative displacement.
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