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periz replied to the topic About coregistration, export kml not aligned with google earth in the forum Sarproz Forum 6 years, 4 months ago
Hi Paul,
you are missing the most important things:
1. you have to process the external DEM in SAR coordinates
2. you have to choose the “orthorectified” output, in the extended data export
You also miss to tell us which satellite data you are using.
If it is not Sentinel, probably you need to select a GCP manually.
Also, search in the forum,…[Read more] -
periz replied to the topic Error in choosing AOI in the forum Sarproz Forum 6 years, 4 months ago
Please take the time to read this https://www.sarproz.com/groups/sarproz-group/forum/topic/forum-general-rules/
if you want we understand what you are talking about, paste pictures, logs, messages, all possible information you can find. -
periz replied to the topic Reference point selection in the forum Sarproz Forum 6 years, 5 months ago
By looking at your results again, I notice that the deviation of the estimated height is particularly high: is this Sentinel? If so, the estimated residual height is not very accurate, because the normal baselines are very small. Do not get crazy with the ref point selection.
The suggested ref points are chosen also considering their phase…[Read more] -
periz replied to the topic Envisat Importing problem in the forum Sarproz Forum 6 years, 5 months ago
hi linweicheng,
sorry for the late answer. You are trying to import Alternating Polarization Envisat images. At the moment this particular Envisat Mode is not supported. We will include it in the near future.
Best -
periz replied to the topic Reference point selection in the forum Sarproz Forum 6 years, 5 months ago
first of all,
velocity and residual height are two different parameters belonging to two different physical characteristics, very different from each other and usually not correlated.
then, even if the majority of radar reflections would be higher than the ground level, still, reflections would be at different height values. Unless you are in an…[Read more] -
periz replied to the topic Envisat Importing problem in the forum Sarproz Forum 6 years, 5 months ago
Problems can be solved by doing things step by step from the beginning.
Step 0: read this https://www.sarproz.com/groups/sarproz-group/forum/topic/forum-general-rules/
In particular for what concerns files to include when one encounters errorsbest
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periz replied to the topic Coregisteration output file format in the forum Sarproz Forum 6 years, 5 months ago
correct.
if you are using matlab, you can type “fast” at the command prompt, this will load all important variables and file names. the you can use “leggi” to read the data, with Type=1. here the help:
Data=leggi(FileName,S,L)
Data=leggi(FileName,S,L,[Svet,Lvet])
Data=leggi(FileName,S,L,[Sin,Sfin,Lin,Lfin])…[Read more] -
periz replied to the topic Sentinel-1A co-registration problem in the forum Sarproz Forum 6 years, 5 months ago
sorry, no idea. since it’s the most recent version of Matlab, then the suggestion is to write to Mathworks reporting the error.
to temporarily solve the problem, you can use the Sarproz compiled version. you just need to launch the co-registration in the compiled version, then you can switch back to Matlab for doing the rest. The Sarproz license…[Read more] -
periz replied to the topic Manage version in the forum Sarproz Forum 6 years, 5 months ago
Sorry, it seems we overlooked your post…
It sounded a system/permissions problem anyway…
But, never mind, now it works… -
periz replied to the topic Sentinel-1A co-registration problem in the forum Sarproz Forum 6 years, 5 months ago
does this file C:Program FilesMATLABR2018atoolboximagesimagesprivateresampsep.mexw64 exist?
what is the output of “license(‘test’,’Image_Toolbox’)” at the matlab command prompt?
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periz replied to the topic Sentinel-1A co-registration problem in the forum Sarproz Forum 6 years, 5 months ago
you need to include a lasterror.mat file
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periz replied to the topic Couldn't open main.exe in the forum Sarproz Forum 6 years, 6 months ago
open a terminal (command prompt), cd to the folder where main.exe is, launch the application from the terminal by typing “main.exe” and pressing enter, then tell us what messages you get
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periz replied to the topic Couldn't open main.exe in the forum Sarproz Forum 6 years, 6 months ago
this means that the installation of the mcr was not successful
try again
and check if the directory where you installed it is in the system path. if not, add it manually to the system path -
periz replied to the topic ALOS 2 SCANSAR Displacement Result Error in the forum Sarproz Forum 6 years, 6 months ago
Hi Rajabun,
this is indeed a visualization bug. What is visualized is the content of the jpeg images which is written in a 0-255 scale. While we work to fix it, you can circumvent the bug by temporarily change the Max Matrix Size value in the advanced parameters https://sarproz.com/manual/adv_param.html In your case, you should write a value equal…[Read more] -
periz started the topic Forum General Rules in the forum Sarproz Forum 6 years, 6 months ago
1. Please read carefully this post.
2. Before starting a new topic, please take the time to search the material on the Sarproz website, in the forum, in the manual and in the tutorials. To find a particular topic, you can use the Search function on the forum main page (input the text of your query in the gray box).
3. To start a new topic,…[Read more]
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periz replied to the topic Error in loading Sentinel 1 SLC data in the forum Sarproz Forum 6 years, 6 months ago
we are now uploading a fix.
to temporarily solve the issue, you could switch back to a previous sw version.
The APIDelay was first introduced on March 24 and then modified on April 19 -
periz replied to the topic Error in loading Sentinel 1 SLC data in the forum Sarproz Forum 6 years, 6 months ago
hi
the error you report is in fact a small bug, an updated version will soon be uploaded online.
however, in normal conditions you should not get such error. it is not clear to me what you are trying to do.
check well please the instructions in the tutorial. make sure data are in the proper folders and try again.
best -
periz replied to the topic Export to Earth Google Pro in the forum Sarproz Forum 6 years, 6 months ago
Hi Carolina,
you should reduce the size of your attachments (pictures), the maximum allowed should be 2MB.
There are many ways to export results to google, you do not say how you did it.
In your case, you should use the “GeoOut” function in the “filter/matrix visualization” frame in the “scatter plots” module:…[Read more] -
periz replied to the topic Displacement velocity too high? in the forum Sarproz Forum 6 years, 7 months ago
You don’t need to re-coregister the dataset. What you can do is looking at the interferograms to see if there are fringes or other problems. In case of problems you may try to remove those images from the dataset (delete the corresponding lines in the dataset.txt file) and re-coregister them, if you think it is a coregistration problem.
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periz replied to the topic Sparse Points are offset? in the forum Sarproz Forum 6 years, 7 months ago
As discussed in many places in the forum, this could be caused by an inaccurate GCP.
However, you can still apply a post-processing correction, using geographic correction operations.
You can find them in the time series module (that correction is applied on a single time series object).
Or you can apply them at you whole site, via this module:…[Read more] - Load More