@jiao7593v
Active 5 years, 2 months ago-
sgishwar replied to the topic Coregistration– in the forum Sarproz Forum 8 years, 6 months ago
Thanks, co-reg was successful after changing param.
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periz replied to the topic Phase unwrapping in the forum Sarproz Forum 8 years, 6 months ago
Perhaps you can read the messages given by the software: why it is not working?
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bahari replied to the topic Phase unwrapping in the forum Sarproz Forum 8 years, 6 months ago
Dear dp,
How we can install new version! I tried use MANAGE VERSION but it doesn’t work.
Nader -
periz started the topic Phase unwrapping in the forum Sarproz Forum 8 years, 6 months ago
Dear all,
a bug was found and fixed in the phase unwrapping code.
Moreover, a new option has been added: you can now load a mask to select on which pixels to apply phase unwrapping (in this way you can e.g. discard water bodies). To create a mask use the module “Custom Mask Generation” which takes a kml file as input.Tests and comments are most…[Read more]
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periz replied to the topic Subsidence in mm in the forum Sarproz Forum 8 years, 6 months ago
hi Sandersax,
if you want to apply spatial phase unwrapping, please download the last sw version, a bug was found and fixed.
dp -
periz replied to the topic Subsidence in mm in the forum Sarproz Forum 8 years, 6 months ago
hi Sandersax,
to work on a single interferogram, use this module: http://sarproz.com/manual/insar_analysis_site.html
to see a description of insar parameters, check this http://sarproz.com/manual/insar_params.html
The idea is that, to convert the phase into mm, you have to unwrap the interferogram
so, if you check the “unwrap” option, then you can…[Read more] -
sandersax started the topic Subsidence in mm in the forum Sarproz Forum 8 years, 6 months ago
Hello everybody
Im a beginner in SARPROZ and subsidence topics, but I have to do a subsidence analysis for my thesis project.
I have a cuestion: how to convert the Phase results to displacement with SARPROZ?
I mean, I want displacement results in milimeters
but only I have the Phase.I attached my kml results
I hope someone of you can help…[Read more]
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seppi-santiago replied to the topic APS – Ext. Dem Option in the forum Sarproz Forum 8 years, 6 months ago
Ok, I’ve visualized it and it is wrong, all zero values. The command prompt tells me this:
” wrong saturation values!” Must be NaN < Min < Max < NaN”
I reselected the DEM, I manually re-wrote the GCP and projected again the DEM amplitude in SAR coordinates. Still seeing all zeros in SAR coordinates.
What should I do?
Thanks,
Santiago -
periz replied to the topic APS – Ext. Dem Option in the forum Sarproz Forum 8 years, 6 months ago
“Site Processing”–>[Visulalization tools]–>”View Parameters”–>scroll the list to “Ext. DEM height”–>pick it–>Click “Plot”
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seppi-santiago replied to the topic APS – Ext. Dem Option in the forum Sarproz Forum 8 years, 6 months ago
Dan,
I’ve checked it with the DEM Visualization tool (screenshot attached), finding no NaNs, but according to the manual this displays the DEM in Geo coordinates, which file corresponds to the DEM in SAR coordinates?
Santiago
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periz replied to the topic APS – Ext. Dem Option in the forum Sarproz Forum 8 years, 6 months ago
Santiago,
you need to plot and check the DEM in SAR coordinates -
seppi-santiago replied to the topic APS – Ext. Dem Option in the forum Sarproz Forum 8 years, 6 months ago
I enclose my log file,
I remember that when you warned me about NaN values in my DEMI checked it and I converted them to zero.
When I made that correction I restarted the process again from the external DEM selection to make sure it was updated.Santiago
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periz replied to the topic APS – Ext. Dem Option in the forum Sarproz Forum 8 years, 6 months ago
If it takes too long,
as I previously explained, it means that there is something wrong.
You did not include the log file, it seems the error is happening in a file that has been modified in the last version.
Anyway, by remotely sensing you case, I think your DEM is containing NaNs.
If you remember, I told you to check it, since your DEM is not…[Read more] -
seppi-santiago replied to the topic APS – Ext. Dem Option in the forum Sarproz Forum 8 years, 6 months ago
Lasterror.mat was not attached in the previous message,
S -
seppi-santiago replied to the topic APS – Ext. Dem Option in the forum Sarproz Forum 8 years, 6 months ago
Hi dan,
Then it is desirable to ckeck it even if estimating displacement only (from what you say I interpret that it is used to remove the topographic phase reding it from my DEM, which in this case is a high-resolution one).
I have tried to re-process my dataset again with this option checked, and apart from taking too long (~8 hrs) I can’t…[Read more]
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periz started the topic Sarproz Release 2016.10 in the forum Sarproz Forum 8 years, 6 months ago
Dear all,
a new Sarproz release is being uploaded at the time of writing.
Changes/new features:
– Time Series module. Beside some bug fixes and minor changes, you can now use this module for importing the time series generated from a different dataset. All what you need is: a) the export site par file (generated from the dataset selection window)…[Read more] -
periz replied to the topic APS – Ext. Dem Option in the forum Sarproz Forum 8 years, 6 months ago
Checking External DEM means removing a phase component proportional to what is written in the external DEM file.
So, this is not directly related to movement.
However, you estimate the movement from phase time series. If you remove or not remove a component from the phase values, clearly you are changing your data. As a consequence, the estimated…[Read more] -
seppi-santiago started the topic APS – Ext. Dem Option in the forum Sarproz Forum 8 years, 6 months ago
Hello,
According to Timo’s notes, I interpret that the Ext. DEM option is for Height Estimation only.
However some times I have accidentally ckeched the Ext Dem option, when estimating displacement only(height neglected), and I’ve seen the Connections Processing takes much longer. My question then is, does the Ext. Dem option have something to…[Read more]
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periz replied to the topic Ramp in the forum Sarproz Forum 8 years, 6 months ago
Hi Nader,
yes, there are some residual fringes, when Yuxiao will have time he will improve his code.
In the meanwhile, as previously said, you can still process your data. There are several ways to remove or at least reduce spurious fringes.
The first thing to do is using the residual fringes estimation and removal module: did you do it?…[Read more] -
bahari replied to the topic Ramp in the forum Sarproz Forum 8 years, 6 months ago
Dear all,
Who can lead me in next step. As I sent the fringes, there is good fringe in this step (with some ramp), but I don’t know why I can receive good results as displacement?Best regards
Nader - Load More