SARPROZ ©

Hi Nader,

Dr. Perissin has already introduced you two methods in the post above. If you can also post your interferograms with fringes on to the forum we can help you by taking a look and giving suggestions.

Yuxiao

Hi Dear Dora,

The warning inside your logs is fixed and your master image should extract just fine. I’ve already tested out the sample data you’ve uploaded and the extraction works well.

To eliminate the warnings you can just download the file I’ve uploaded, extract them and overwrite with the exist ones in your pcodes folder.

Yuxiao

Hi Santiago,

In the current version of code we didn’t implement the importing of s1a dual polarization. We will fix this issue in a couple of days the most. We will let you know on that.

Meanwhile, for downloading s1a data, due to the heavy burden of ESA’s server, it is either recommended to use the API…[Read more]

Hi Matus,

Sorry for the late reply..

Since the coregistration will rely on the area and quality of overlapping parts between bursts, it is always generally a good idea to extract a bigger area (especially on range direction) so to ensure there are enough overlapping parts for fine-coregistration.

Then, since the fine-coregistration will rely…[Read more]

Hi Dora,

The link is fine. I am going to run you data in a while and then let you know!

Yuxiao

Hi Dear Nader,

Yes first we should at least see the fringes.

In the second place, as said in the previous topic, It would be great for you to send me you master image’s file name (or date, but file name preferred), the image pairs (same as master image) that has ramps, and the range (coordinates, samples and lines) you set for your area so t…[Read more]

Hi Ivana,

Thanks for the info! I will take a look into the data and let you know!

Yours,
Yuxiao

Hi Ivana and Matus,

The phase ramps within the interferograms is usually a case-by-case issue and we do need to take a look case-by-case, since there are a number of issues that might cause the ramp.

It would be the best for you to send me you master image’s file name (or date, but file name preferred), the image pairs (same as master image)…[Read more]

Hi Ivana and Matus,

The phase ramps within the interferograms is usually a case-by-case issue and we do need to take a look case-by-case, since there are a number of issues that might cause the ramp.

It would be the best for you to send me you master image’s file name (or date, but file name preferred), the image pairs (same as master image)…[Read more]

Hi Ivana and Matus,

The phase ramps within the interferograms is usually a case-by-case issue and we do need to take a look case-by-case, since there are a number of issues that might cause the ramp.

It would be the best for you to send me you <u>master image’s file name (or date, but file name preferred)</u>, <u>the image pairs (same as master…[Read more]

Hi Dear Qingli,

From the log I can see that you’re using the pcodes from August 29th last year.

A lot of things went done since then…

One way to fix the bug is update the pcodes. Then we will see if the bug persists.

Happy Monkey New Year!

Yuxiao

Hi all,

The bug that impacts most S1A images acquired after November 2015 has been fixed and I have submitted the code to Dan. The next new version of SARPROZ that should come out in the next days should just work fine.

Please let me know if the new codes work well or not,

Thanks to you all!

Yours,
Yuxiao

HI Qingli,

Sorry that I haven’t log on to QQ for a while.

I didn’t see anything specific from the log, so I will need to download your data and test it out. I will let you know once I’ve got the result.

Yuxiao

Hi Dora,

if your problem persist, we need to find a way to get your data and tested out.

Do you have a ftp or something like that so we can get the scene of data that is wrong? Or we can teamviewer together to take a look.

Yuxiao

Hi all,

I have been reported the inconsistency between images acquired after November 2015 and before that from a number of people. I am currently investigating this issue and I will come back to you once I get a conclusion.

Thanks to all,

Yuxiao

Hi Dear Matus,

I didn’t see anything particular wrong about the software. It looks like the thing is coming from data.

One thing you can do is to check if there’s some heavy raining on either of the dates.

Meanwhile I will take some time to download and take a look at your data also.

Yuxiao

Hi Dora,

I’ve downloaded your data and replicate the steps. However I didn’t seems to find anything wrong there. I successfully extracted the image. A screenshot of my process is available here.

https://www.dropbox.com/s/a30edq95mkghsw2/Screenshot%202016-01-23%2014.12.28.png?dl=0

Can you give us more infos on your case if it keeps going…[Read more]

Hi Qingli,

You need to zip the file, send via a link or send from email. This current attachement is not reachable here.

Yuxiao

Hi Qingli,

Sorry for the late reply.

Can you send me the log file for the processing from importing tops to generating reflectivity map? I need to take a look to see where the problem is.

As Dan mentioned, can you also check if the amplitude of each image is correct without any dark areas?

Thanks!

Yuxiao

Hi Dear Ivana,

Thanks for the testing, this is indeed a bug and I’ve fixed it.

I’ll submit the fixed code for sarproz.

Between now and the publishing of new version, as a temporarily work around, this bug can generally be avoided by not selecting areas close to the border of Sentinel image.

Also in your log I see that you have sentinel…[Read more]