@bahaamohamadi
Active 4 months, 2 weeks ago-
matusbakon started the topic RADARSAT-2 geocoding error in the forum Sarproz Forum 8 years, 11 months ago
Hi,
while processing RSAT-2 images I get wrongly geocoded reflectivity map (). Attached please find screenshots in chronological order.
Thanks
Matus
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huijung replied to the topic error in importing SLC data in the forum Sarproz Forum 8 years, 11 months ago
yyyymmdd.led file size is different from the original. After replace the led file, it works now.
Thanks -
cnu_lee replied to the topic user defined DEM in the forum Sarproz Forum 8 years, 11 months ago
Thanks for the help from Pro.Daniele and Dr. yuxiao. The problem has been solved.
Firstly,ensure the DEM is bigger than research area. The research area should be checked carefully. It must be smaller than the user defined DEM, or it will not be processed successfully follow-up.
Secondly, the problem is coordinates transformation.My first-time…[Read more]
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cnu_lee replied to the topic user defined DEM in the forum Sarproz Forum 8 years, 11 months ago
Thank you sir.
I’m sorry I was offline last night.Today I’m available waiting for you. Please contact me when you are online.Thanks.
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periz replied to the topic SAR coordinates computation in the forum Sarproz Forum 8 years, 11 months ago
right, for some reasons I forgot to answer.
Well, the easiest way for you to select manually points is to create manually a mask file.
You can do it in the following way:
– type fast in the matlab command prompt
– create vectors of samples and lines of the points you want to analyze:
Svet=[ … ]; Lvet=[ … ];
– create a matlab sparse matrix:…[Read more] -
periz replied to the topic amplitude values in the forum Sarproz Forum 8 years, 11 months ago
Images are equalized via a simple normalization process.
You need it to perform statistics on amplitude time series.
The unit of amplitude is volt. But its value is useful only if compared to other values, not in an absolute way.
If you could calibrate it by knowing the amplitude of a reference corner reflector,
you could derive the RCS of targets…[Read more] -
periz replied to the topic error in importing SLC data in the forum Sarproz Forum 8 years, 11 months ago
First of all,
can you update the software version?
You do it through the manage version module, in the dataset selection window.
Then try again and if the problem persists, can you send us a link for downloading your LED file? -
periz replied to the topic user defined DEM in the forum Sarproz Forum 8 years, 11 months ago
I am afraid we need to check the data together
Can we talk on skype? -
ivca-cz replied to the topic SAR coordinates computation in the forum Sarproz Forum 8 years, 11 months ago
Daniele,
could you please answer the questions from the previous one-week-old post in this thread?
Thank you, Ivana
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ivca-cz started the topic amplitude values in the forum Sarproz Forum 8 years, 11 months ago
Hello,
I would like to ask in what units are the amplitude values. As these values (up to 4 for most of the area, high-amplitude points up to 30-40) do not seem to be the absolute values (expecting to 10^3, high-intensity points up to 10^8), neither the decibels (or decibels w.r.t. what?).
Thank you, Ivana
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huijung replied to the topic error in importing SLC data in the forum Sarproz Forum 8 years, 11 months ago
yes, please download the error.zip file.
Thanks -
Yuxiao replied to the topic error in importing SLC data in the forum Sarproz Forum 8 years, 11 months ago
Hi Huijung,
you need to zip the attachment before uploading them.
Can you also upload them again?
yuxiao
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Yuxiao replied to the topic error in importing SLC data in the forum Sarproz Forum 8 years, 11 months ago
Hi Huijung,
you need to zip the attachment before uploading them.
Can you also include the lasterror.mat file?
yuxiao
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huijung replied to the topic error in importing SLC data in the forum Sarproz Forum 8 years, 11 months ago
sorry, I cannot upload lasterror.mat. The log file I have change sub name is attached.
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huijung started the topic error in importing SLC data in the forum Sarproz Forum 8 years, 11 months ago
Dear sir
I have problem with importing SLC data.
It says Attempted to access total_size(1); index out of bounds because numel(total_size)=0
Attached the error message, log and lasterror.mat
I do rename all LED-AP*****-H1.0__A file into yyyymmdd.led. -
cnu_lee started the topic user defined DEM in the forum Sarproz Forum 8 years, 11 months ago
Hi, Pro. Daniele,
I used two stereo images to obtain a DSM image,I imported the DSM into sarproz instead of SRTM.
But my research area couldn’t be found from the DEM, the screenshot didn’t show the area that should be made up of four “X mark”.
Did it mean the DSM wasn’t correct ?
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cnu_lee started the topic user defined DEM in the forum Sarproz Forum 8 years, 11 months ago
Hi, Pro. Daniele,
I used two stereo images to obtain a DSM image,I imported the DSM into sarproz instead of SRTM.
But my research area couldn’t be found from the DEM, the screenshot didn’t show the area that should be made up of four “X mark”.
Did it mean the DSM wasn’t correct ?
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huijung joined the group sarproz-group 8 years, 11 months ago
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ivca-cz replied to the topic Sentinel TOPS threads in the forum Sarproz Forum 8 years, 11 months ago
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ivca-cz replied to the topic Sentinel TOPS threads in the forum Sarproz Forum 8 years, 11 months ago
Hi Yuxiao,
I am attaching one image from the FITTED directory (they all look approximately the same) and one image from the INTERFEROGRAMS directory (they do not look the same as expected, but the half-zero pattern is the same in all the interferograms), and the logfiles (hope they are the right ones). Please let me know what else you need.
Ivana
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