SARPROZ ©

What has worked for me was adding last four lines to alos_psr_meta.m

mid_lat = str2double(facility(3065:3084));
mid_lon = str2double(facility(3085:3104));
if isnan(mid_lat) || isnan(mid_lon)
mid_lat = str2double(summary(123:134));
mid_lon = str2double(summary(139:148));
end

However, I’ve lost the M-file, probably Daniele…[Read more]

Dear prof. Perissin and Matus,

have you managed to resolve this issue? I’m probably encountering the same one.

There is prior error concerning the coordinates (of scene centre), since srprz tries to download SRTM for NaN latitude and NaN longitude (please see the log attached).

Many thanks
Richard

June 19, 2017 at 3:49 pm
The error is fixed and the new version is uploaded.
Q

hello,yuxiao, here is still the problem of loading TOPS data .
i attached the log. and last error. mat file and please have a look with them.
Thanks,
Regards.

here is the reminder in the matlab.

Extracting Master Image

processing Sentinel Subswath nr 1

SLC data extraction

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

Hi Daniele,

thank you for your quick reply.

I’ve got reasonably good results using the Star images graph.
By the way, I would like to check phase unwrapping files and where I can find them?
Do I need to use small area processing module for that purpose?

thanks,
Venera

that’s exactly the purpose of using a GCP. Anyway in Sarproz you can correct such shifts also later with the geographic corrections module

I encounter an error when i choose “Manage version” and click “Go”. This following error occurs:

Connecting to the Server…
Fatal: Host key did not appear in manually configured list
failure in calling psftp
Aborting…
sftp_multi_platf: job “get” failed!
Download Unsuccessful
>>

What is wrong with your manage version module?

Hi Periz,

I viewed the reflectivity map with 1×1 downsampling from (Extended geocoding). There appears to be a slight shift (several metres) between the reflectivity map and the actual structures from Google Earth. Do you think this can/should be improved by choosing better GCP?

Thank you very much!
Moath

I don’t see easily a reason for that residual ramp. This would deserve some deeper investigation. The results anyway are now much better.
About the geocoded reflectivity map: are you keeping a 1×1 downsampling? Otherwise, u’ll degrade the resolution. The mean kml generated from the GCP module is downsampled 8×8. That map is generated just to give…[Read more]

Hi,
I’ll be grateful if you sent me new pcodes, since i’am unable to
update using the manage version module.
Thank you in advance,

i already zip these two files. please have a look.
here is the attachment
thanks,
Qingli

i already zip these two files. please have a look.
thanks,
Qingli

Hi Periz,
Thank you very much for your response. I do think it is related to a faulty memory as I recently added an 8 GB RAM which could have caused this issue.
Anyways, The problem does not happen that often recently, but if it persists I will definitely try what you suggested.

Thank you very much for your help. I really appreciate it!
Regards,
Moath

I also have two more questions:

1- Although the results obtained after residual orbit removal were better, there are still interferograms that are affected by ramps (see attachment). Could this still have influence on my results?

2- The other issue is with the GCP selection. I identified a lamp post as a GCP and when opening mean KML, everything…[Read more]

Hi Periz

Thank you very much for your response.I checked the interferograms and they had ramps. I obtained better results (please find attachments) when I used the function you mentioned the the parameters you specified.

Is there a way to know how good these results are?

Many thanks
Regards,
Moath

Hello,

That was a very stupid mistake of mine and it is fixed.

You can try the newest version now.

Q

The error is fixed and the new version is uploaded.

Q

Attach files

Hi
I encounter an new error When I insert Stripmap images of Sentinel sensor into “slc data import” module and choose “Master Extraction”. I use pcodes generated on: 18-Jun-2017 for windows.this
following error occurs:

Processing the SLC data Preparation
Using 4 workers
Extracting Master Image
SLC data extraction
An error occurre…[Read more]