SARPROZ ©

Hi Benattou,
looks like that your code is somehow corrupted
try please to update your software version using the manage version module
or otherwise replace your code with the original one you received
let us know if that solves your issue
(by the way, from your log it looks like you have ascending a descending images in the same dataset, please…[Read more]

send by email the log file and errors if any

At the moment we don’t have yet a module for pixel tracking, we are still developing it.
However, the functionality is already there, and, with a bit of patience, you can already use it.
In fact, the software is storing the shifts estimated from the coregistration, and you can load them and display/output the shifts.
Some elements needed to do…[Read more]

there are many types of masks
sparse points masks:
http://sarproz.com/manual/set_mask.html
continuous masks
http://sarproz.com/manual/kml2mask.html
more complex pixel selections (“save selection” below)
http://sarproz.com/manual/xplot.html
and you can load any custom file you create in any module of the software with “choose a real file” in the…[Read more]

1. if you process the STAR graph and you do not use the coherence as weight, there is no need to generate interferograms (the sw uses unfiltered phase)
2. if you have few images, a possibility to make the system more stable is processing a non-star graph to add redundant interferograms. if you do so, you may want to filter interferograms and use…[Read more]

Hi Sekhar,
yes, the lines appear because the image is subdivided into patches. however, they look like lines in the picture that you attached, but in fact it’s just an optical effect showing the higher density close to patch borders. if you zoom in, you will see that they still pick up real local maxima, and pixels are not aligned, so, you do not…[Read more]

Updates can be installed through this interface http://sarproz.com/manual/manage_version.html
if you encountered errors, please send us lasterror and log files
if you upload them here, zip them first

Hi Sekhar,
in Sarproz parameters you find both “ampl. stab. index 1-sigma/mu”=ASI and “ampl. stab mu/sigma”=SA
what you call Ampl. Dispersion is DA=sigma/mu=1/SA
ASI=1-1/SA=1-DA
since in the APS module points over the threshold are selected, then you have to use ASI > .75
otherwise, you can apply more complex conditions (>< || && on multiple…[Read more]

Hi Sekhar,
in Sarproz parameters you find both “ampl. stab. index 1-sigma/mu”=ASI and “ampl. stab mu/sigma”=SA
what you call Ampl. Dispersion is DA=sigma/mu=1/SA
ASI=1-1/SA=1-DA
since in the APS module points over the threshold are selected, then you have to use ASI > .75
otherwise, you can apply more complex conditions (>< || && on multiple…[Read more]

Hi Sekhar,
in Sarproz parameters you find both “ampl. stab. index 1-sigma/mu”=ASI and “ampl. stab mu/sigma”=SA
what you call Ampl. Dispersion is DA=sigma/mu=1/SA
ASI=1-1/SA=1-DA
since in the APS module points over the threshold are selected, then you have to use ASI > .75
otherwise, you can apply more complex conditions (>< || && on multiple…[Read more]

Hi Sekhar,
in Sarproz parameters you find both “ampl. stab. index 1-sigma/mu”=ASI and “ampl. stab mu/sigma”=SA
what you call Ampl. Dispersion is DA=sigma/mu=1/SA
ASI=1-1/SA=1-DA
since in the APS module points over the threshold are selected, then you have to use ASI > .75
otherwise, you can apply more complex conditions (>< || && on multiple…[Read more]

hi Ivana,
InSAR is by definition a differential operation, so, constant terms have no impacts.
What counts in the temperature is its variation, not its average.
Also standard deviation and variance are independent from the mean value.

Hi Ivana,
baselines are saved in the DataSet.txt file. However, it’s just an indicative number, since the baselines changes within the analyzed area. In the processing, such value is calculated from the orbital information.
If you use Matlab you can also load the baselines values using the command “fast”. They are stored together with other infos…[Read more]

Hi Matus,
try first the code I passed you by email, we’ll upload it after a few more tests
thanks

Hi Mahtab,
write an email to me, I will pass you a piece of code which may solve this issue, we need some tests before uploading the complete new version.
thanks

If you check your failing SRTM file,
it should be very small, you can open it with a text editor, you will see it is actually an html file, not a zip one
delete it and all similar files, that will solve the problem (the software will download them automatically when needed)
if you are not sure about which file is good, which one is not, delete all…[Read more]

Hi Jaroslav,
first of all, take this as a temporary message. We are working at general solutions for avoiding these problems.
Secondly, when you get such messages, the first thing you should do is checking if this has an impact on the phase.
The quickest solution is temporarily discarding images that generate this problem.
Otherwise, the problem…[Read more]

Please update your code with the lastest version via the “manage version” module, that you find in the “dataset selection” window. this is a bug that we already fixed.