SARPROZ ©

Hi Yasser,

you will need to zip the lasterror.mat together with the log file and upload the zip file so that I can take a look.

Thanks!

Yuxiao

Hi PY,
is this happening after a sarproz update?
if so, would you mind switching back to a previous version and try if that solves the problem?
without any other information, it sounds like it’s a system/matlab problem…
could you single out any other software/system change on your PC? Maybe related to Java?
We may need to investigate it directly…[Read more]

ok, now I understand the issue.
in fact, we did not consider this situation, we will modify the code for that.
The fact is that you are multilooking. as a consequence, the “Amp. Stab. Ind plus Sp. Coher.” is useless.
in fact, the amplitude stability index is a full-resolution index. if you multi-look, it makes no sense using it…

this is laterror.mat and log files

I run the coherence map generation again, the message is

Coherence map processing started

loading Graph_0290.mat graph

allocating 190 x 224 samples, type: 0

save_asi_coer: Firstly, process the Spatial Coherence! Aborting.

The Processing concluded successfully, here a specific message:

Coherence Map Generation : job ended
why…[Read more]

the message u posted states that the “Amp. Stab. Ind plus Sp. Coher.” parameter is not found.
Such parameter is generated when you save the Spatial Coherence.
So, my suggestion is: run the coherence map generation again. I expect that in this way you will solve the problem.
If on the contrary the “Amp. Stab. Ind plus Sp. Coher.” will still be…[Read more]

Hi Yuxiao,

I am sorry, I did not mentioned the path where the lasterror is. Hope it is fine now.

Thank you for the answers. I will therefore try to re-download the data in all cases. The distance is not so critical, I was just astonished that for two tracks, the stations are so far away from each other…

When the weather data was not complete…[Read more]

Hi Ivana,

For your second question: since the software is querying one webpage for each date of your image, there are chances that one or more of all the querying are not getting response within the setted time limitation (which is 10 seconds, I think). The reason we set the time limitation for each query is because there is a known bug in Matlab…[Read more]

Hi Ivana,
yes, the your first note is a bug. please give us 1 day to upload the fixed version.
Second note: if you download the weather data at the beginning of the SLC extraction process, yes, the center of the footprint is used. But if you download the data again after working on the crop, the crop center is used. If still the weather station is…[Read more]

As checked together,
probably there were corrupted files in the optical images directory, changing the directory or deleting/moving the downloaded Google Earth files solves the problem.
We take the chance to remind here that GE files are downloaded in this directory: ‘../GIS/GOOGLEEARTH/’
with reference to the current site directory.
In case of…[Read more]

Hi Ivana,
that error happens while loading the image in the background.
The sw searches in the directory that you can change through the “layer” button.
If you change the directory, you should temporarily solve your problem.
To investigate why that happens, you could save the small area (with the same conditions as when the error occurs)
and pass…[Read more]

Yasser,

In Sarproz you can implement almost everything. However, instead of having buttons as “PSI”, “SBAS”, or whatever, you have a series of tools/options that you can combine. Clearly, this requires understanding the operations. It’s more difficult than having predefined buttons, but I think it’s more powerful.

The 2 conditions you mention…[Read more]

Hi Yasser,

original PSI: STAR graph, no weights, no filtering
QPS: non-STAR graph, weights (spatial coherence), filtered phase
Anyway, Sarproz gives you the choice to combine those options and do what you want. You do not need to call what you do “PSI” or “QPS”.

However, you have to be aware of the following: when you choose the option “coher”…[Read more]