jaroslav

jaroslav started the topic Reading AutoConnex.mat file manually in the forum Sarproz Forum 1 year, 6 months ago

In APS processing module if Reference point is set to “Auto”, then Sarproz suggests 25 points to choose from.
I assumed, that if saved, reference point candidates shall be found in AutoConnex.mat file. Looking through file structure, I couldn’t locate said points myself, and thus I’m asking for guidance.
Am I searching through correct file?…[Read more]

jaroslav started the topic APS estimation errors in the forum Sarproz Forum 6 years, 9 months ago

Hello everyone,
I have encountered a bunch of errors while estimating the APS.
The graph seems to be coherent enough, but some points are disconnected.
Is it mandatory in this case to refine my graph. Is there another may to resolve those errors?

Thank you.

jaroslav replied to the topic New Update in Sentinel TOPS Module in the forum Sarproz Forum 6 years, 10 months ago

Hello Yuxiao, thank you for this great update.
I takes a couple of weeks for precised orbit files to arrive, does it mean, that new co-registration method can’t be used with newest images?

Jaroslav

jaroslav started the topic Undo step in the forum Sarproz Forum 6 years, 10 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

jaroslav replied to the topic Custom mask generation with multi geometry doesn't work in the forum Sarproz Forum 7 years, 1 month ago

Sure, a have attached a sample kml file.
Thank you!

jaroslav started the topic Custom mask generation with multi geometry doesn't work in the forum Sarproz Forum 7 years, 1 month ago

Hello!
In custom mask generation module, if I load a kml file containing MultyGeometry object, then the software generates an empty mask.
Is there a way to generate one mask for two different polygons?

Jaroslav

jaroslav replied to the topic Set orbits -> index exceeds matrix dimensions in the forum Sarproz Forum 7 years, 2 months ago

Hello,
The problem has really gone by itself. Thank you for assistance.
If this kind of error happens again, do I just wait a couple of days for this error to be gone?

Jaroslav

jaroslav replied to the topic Set orbits -> index exceeds matrix dimensions in the forum Sarproz Forum 7 years, 2 months ago

Sorry for late response.
The of the file, i have found there: S1B_OPER_AUX_RESORB_OPOD_20171001T085309_V20171001T040012_20171001T071742.EOF

Jaroslav

jaroslav replied to the topic Set orbits -> index exceeds matrix dimensions in the forum Sarproz Forum 7 years, 2 months ago

Tenth directory was empty, however I suggest, that you kept in mind ninth one.
There was only one file: S1A_OPER_AUX_RESORB_OPOD_20170925T091232_V20170925T040053_20170925T071823.EOF

Jaroslav

jaroslav started the topic Set orbits -> index exceeds matrix dimensions in the forum Sarproz Forum 7 years, 2 months ago

Hello!
During setting orbits for stack of Sentinel-1 images I have encountered an error.
I didn’t succeed to guess the reason myself, so I’ve decided to send an error logs.

Jaroslav

jaroslav replied to the topic Sentinel-1 co-registration warnings in the forum Sarproz Forum 7 years, 7 months ago

Hi Yuxiao,
Doesn’t master choice influence co-registration process a lot? I have often noticed, that outcome may be significantly improved just by choosing right master.
Additionally, I’d like to ask about Sentinel master choice methodology. Usually, master is chosen such, that the dispersion of the perpendicular baseline is as low as possible,…[Read more]

jaroslav replied to the topic Sentinel-1 co-registration warnings in the forum Sarproz Forum 7 years, 7 months ago

Hello,
I didn’t actually completely overcome this issue yet.
However, the master choice seems to help sometimes. In cases of problematic co-registration I usually try to manually evaluate image list in order to exclude the most noisy ones and choose the most contrast image as a master.
Somebody, correct me if I’m wrong, please.

jaroslav started the topic Master extraction error in the forum Sarproz Forum 7 years, 8 months ago

Hello!
I’m trying to co-register Sentinel images with “Max. Area” checked. I always get error message, that matrix exceeds dimensions.

jaroslav started the topic Sentinel-1 co-registration warnings in the forum Sarproz Forum 7 years, 10 months ago

Hello everyone!
During co-registration of my dataset I often get a warning, my area of interest doesn’t have enough coherence.
WARNING!!! WARNING!!! WARNING!!! WARNING!!! WARNING!!! WARNING!!! Your AOI does not have enough coherence for accurate subpixel coregistration!!! A linear azimuth ramp may appear on your interferograms as the result!!!…[Read more]

jaroslav started the topic Sentinel-1 co-registration warnings in the forum Sarproz Forum 7 years, 10 months ago

Hello everyone!
During co-registration of my dataset I often get a warning, my area of interest doesn’t have enough coherence.
WARNING!!! WARNING!!! WARNING!!! WARNING!!! WARNING!!! WARNING!!! Your AOI does not have enough coherence for accurate subpixel coregistration!!! A linear azimuth ramp may appear on your interferograms as the result!!!…[Read more]

jaroslav started the topic Sentinel-1 co-registration warnings in the forum Sarproz Forum 7 years, 10 months ago

Hello everyone!
During co-registration of my dataset I often get a warning, my area of interest doesn’t have enough coherence.
WARNING!!! WARNING!!! WARNING!!! WARNING!!! WARNING!!! WARNING!!! Your AOI does not have enough coherence for accurate subpixel coregistration!!! A linear azimuth ramp may appear on your interferograms as the result!!!…[Read more]

jaroslav started the topic Sentinel-1 co-registration image shift in the forum Sarproz Forum 7 years, 10 months ago

Hello!
It often happens, that Sentinel doesn’t take pictures of an exactly same place. One-two burst difference may take place.
I am wondering, if two pictures overlap covers area, that I’m interested in, what is the maximum allowed image shift, so that co-registration can be trusted?

jaroslav started the topic Invalid SRTM file in the forum Sarproz Forum 7 years, 10 months ago

Hello,
While getting contents of Sentinel images I’ve got an error message that
file /home/user/sarproz/kroodi_160/../SRTM/N59E024.hgt is missing. Trying to download it


 file /home/user/sarproz/kroodi_160/../SRTM/N59E024.hgt correctly downloaded

An error occurred and was saved in the file lasterror.mat, directory…[Read more]

jaroslav started the topic Co-registration evaluation in the forum Sarproz Forum 8 years, 2 months ago

Hello!
Sometimes while co-registration I get a message with multiple warnings above and below it. It usually happens if I try to co-register too small or too noisy area.
Could you please explain how does the software evaluate the quality of co-registration or where can I read about this?

Jaroslav

jaroslav replied to the topic Getting Sentinel-1 product contents problem in the forum Sarproz Forum 8 years, 2 months ago

I’d be glad to, how can I contact you personally?

Jaroslav

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