@zahrag75
Active 10 months ago-
cp02 started the topic analysis of APS results in the forum Sarproz Forum 6 years, 6 months ago
Dear Prof. Perissin,
I’d like to ask you for any suggestions and opinions about the analysis to better understand the parameters involved in the processing.I used Sarproz to analyse 21 Sentinel 1A images over one year. In the preliminary processing I analysed an area of 8 km (radius) for the coregistration of all images. In the final part I…[Read more]
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asteriospapas replied to the topic understanding aps estimations parameters and results in the forum Sarproz Forum 6 years, 6 months ago
I apologise for the delayed thank you.
We appreciate the help. The results, with carefully consideration of the above suggestions, were found really close to the expectation we had.
Thank you again and always congrats on the work being done. -
periz replied to the topic Undo step in the forum Sarproz Forum 6 years, 6 months ago
Hi Jaroslav,
surely, you can undo/recover lots of things in Sarproz (in fact, almost all operations).
In particular, you can undo “Residual fringes estimation and removal” by clicking on “reset flat/height constants”.
best -
jaroslav started the topic Undo step in the forum Sarproz Forum 6 years, 6 months ago
Hello!
Is it possible to undo some processing steps?
I am particularly interested to undo “Residual fringes estimation and removal” in case it didn’t gave the expected effect.j
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periz replied to the topic understanding aps estimations parameters and results in the forum Sarproz Forum 6 years, 6 months ago
About a. b. and c. just go with a. The other options are still experimental.
About thresholds, use the suggested ones as starting point. If you are not happy, try to rise the minimum value for being more restrictive. -
asteriospapas replied to the topic understanding aps estimations parameters and results in the forum Sarproz Forum 6 years, 6 months ago
Thank you for the super fast response.
we are running now the data with what you suggested.Regarding the graph analysis and refinement, we have looked at it, but we do not understand the parameters exactly what they exactly they are for. Checking the manual it doesn’t really go in depth:
(from manual)
3. press the button “go” in the “clusters…[Read more] -
periz replied to the topic understanding aps estimations parameters and results in the forum Sarproz Forum 6 years, 6 months ago
The result looks reasonable.
To check if the APS was well estimated, you the final “test” function. If the final coherence is high and evenly distributed, you are done. You can also plot the APS one by one to check for issues.
To understand if the height estimation range is correct, check the histogram of the connections residual height. You can…[Read more] -
asteriospapas replied to the topic understanding aps estimations parameters and results in the forum Sarproz Forum 6 years, 6 months ago
I also added this image.
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asteriospapas started the topic understanding aps estimations parameters and results in the forum Sarproz Forum 6 years, 6 months ago
Hello,
firstly we would like to congratulate you for the great work that has been put in the sarproz software.We would like to get a better understanding on analyzing the parameters and results of the aps processing. We are running 66 sentinel-1 images, from 2014 to 2018, over an area of nearly 16×16 km using a star graph.
In the sparse point…[Read more] -
estellec replied to the topic no window for site directory path selection in the forum Sarproz Forum 6 years, 7 months ago
Hi Dan,
I have tried killing everything, installing Matlab locally (rather than the University Matlab requiring network) and still have the same issue. When would be a good time for us to look at it via remote connection next week?Thanks!
Estelle -
periz replied to the topic Linux compiled version problem in the forum Sarproz Forum 6 years, 7 months ago
You should follow the instructions:
“you need to send an email to licensing@sarproz.com attaching the file license.key ”
best -
seos started the topic Linux compiled version problem in the forum Sarproz Forum 6 years, 7 months ago
Dear Danıele, Ive been trying to run the compiled version on Ubuntu(linux) but im gettıng error 015. See below, any advice wıll be much appreciated.
./run_main.sh /usr/local/MATLAB/MATLAB_Compiler_Runtime/v83/
——————————————
Setting up environment variables
—
LD_LIBRARY_PATH is .:…[Read more] -
dkouhartsiouk joined the group sarproz-group 6 years, 7 months ago
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periz replied to the topic APS processing and coherence in the forum Sarproz Forum 6 years, 8 months ago
By looking at your images I have to make the following comments:
1. I am not sure if 0.7 ampl stab is a good threshold with 26 images. it would be useful to see the reflectivity map and the ampl stab map to have a better idea.
2. the range of height you are trying to estimate is too big. consider that you are processing connections (nearby…[Read more] -
janbu started the topic APS processing and coherence in the forum Sarproz Forum 6 years, 8 months ago
Hi,
I have read a few topics on the forum on the APS module and I think I am getting there. However, I am still not sure which is the optimum for my analysis and if there is something wrong. I have been playing with different graphs, amp stab index thresholds, weights and so on. Often, I got into cases like this with the suggested…[Read more]
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periz replied to the topic No external Sentinel orbits in the forum Sarproz Forum 6 years, 8 months ago
Good that it was solved…
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janbu replied to the topic No external Sentinel orbits in the forum Sarproz Forum 6 years, 8 months ago
The problem was fixed by removing the firewall completely.
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janbu started the topic No external Sentinel orbits in the forum Sarproz Forum 6 years, 8 months ago
Hi,
I am trying to process a stack of 26 S1B images. Unfortunately, it seems that the orbits are not downloaded. I have an internet connection and I am using a windows virtual machine. Here is the message I get for all the images:
26 images selected with VV polarization
Starting parallel pool (parpool) using the ‘local’ profile … connected to…[Read more] -
periz replied to the topic no window for site directory path selection in the forum Sarproz Forum 6 years, 8 months ago
Hi Estelle,
unfortunately the Matlab version you are using does not allow us debugging errors.
My feeling is that you should kill everything, try again and it may work. If not, we need to look at that together via remote connection.
Best
dan -
estellec started the topic no window for site directory path selection in the forum Sarproz Forum 6 years, 8 months ago
Hi there,
When clicking “select” in the “site directory” tab (within the data selection panel) no new windows is showing up. Therefore I receive the attached errors and I am unable to select a path for my dataset.
I would appreciate any help on this problem.Thank you
Estelle - Load More