SARPROZ ©

Dear Ivana,

I’ve taken a look at the log file, and there’s a very stupid error in the last version of sarproz that causes the tops-post-processing (a second-time fine coregistration) not able to finish.

And the wrong result in interferogram is exactly the consequence of the tops-post-processing (fine-coregistration) not able to finish.

We…[Read more]

And at last,

I am attaching what I got as interferograms. Two of the interferograms look reasonably, two of them contain the stripes noted in the last post and the rest (7) of images look like this (attached): stripes in coherence.

(in the last post, I forgot to note that 20150703 is the master image.)

Do not know whether it can be caused by…[Read more]

Hello again,

I keep on processing, despite some images do not cover the whole area. I have encountered two errors I do not understand:

the first is in the lasterror.mat and .log files,

the other is the scshot documenting one of the resampled slaves (I would expect black at the end of the image, but not a stripe…) there are two images like…[Read more]

Thank you Yuxiao,

no, I mean something else:

having two images:

S1A_IW_SLC__1SDV_20150504T051700_20150504T051727_005767_007683_7E38.SAFE
S1A_IW_SLC__1SDV_20150504T051725_20150504T051752_005767_007683_1924.SAFE

they are apparently one following other in the flight direction,

(during spring, everywhere was disclosed that they can be tiled…[Read more]

Hi Ivana,

Sorry for asking this, I want to get a clearer idea about your question: are you referring to the overlapping of different subswath? Can you give a few screenshots or something so I can have a better understanding towards your question?

Thanks!

Yuxiao

Hello again,

the S1 images do not overlap by 100% (although the bursts should be synchronized, they are put to different images each time), but according to ESA, it can be tiled seamlessly (in the azimuth direction). My area has such a problem: in some images, it is contained as a whole, in some images, only part of it is contained.

I also tried…[Read more]

Hello,

also thanks for the TOPS module.

Seems to me (not critical) that the UPDATE mode in the SLC DATA IMPORT module does not work… if I press Slave Extraction, it tells me to use Master Extraction first… and the Master Extraction does not work either.

(encountered more times)

I.

Hi Matus,

thanks for the case, we are now including the management of INVALID samples.
In your particular case it may turn out that the adjacent track will better cover the AOI (it’s close to the border).

About the adaptive mask, KS is Kolmogorov Smirnov and DS is Anderson Darling (it should be AD). The connectivity is not used right now, we’ll…[Read more]

Hi Matus,

Yours is indeed not S1 image but TOPS based on the sarproz log file.

This is something we never encountered and I will be more than happy to take a look.

Just while I was doing the investigation, can you also tries to update to the newest pcodes, clean up all the directories and start with only the SLC folders again? During the last…[Read more]

Hi,

thank you all for a good job and for putting your effort into developing S1 TOPS processing and adaptive mask. I’ve been eagerly following updates last days and I’ve tried to produce coregistrated stack of 8 S1 images. However, in versions from last days (7-Aug, 12-Aug, 14-aug) I get half of extracted Master and Slave images black. I was…[Read more]

I use top, only one matlab process is running, as describe below:

That was strange, it has occupied only 5% of CPU

if Matlab says it’s busy, that’s not enough to understand if it is calculating things or if it’s waiting for something.
You have to use the task manager in windows to see if there are 4 Matlab parallel processes at full work. Otherwise top in Linux.

if Matlab says it’s busy, that’s not enough to understand if it is calculating things or if it’s waiting for something.
You have to use the task manager in windows to see if there are 4 Matlab parallel processes at full work. Otherwise tops in Linux.

how many PSC/Connections are you processing? Also, what is the size of your dataset (samples and lines)? is your data on a local or external disk?

Here is the Matlab windows

Thanks for you attention, the Matlab parallel pool is still busy, but waitbar is still 0%.

the parallel processing waitbar requires a network protocol to exchange infos between workers
probably this communication was lost in your system and the waitbar got stuck, blocking the processing.
you can check it if the waitbar does not move and there is no matlab instance keeping the CPU busy.
In such a case it should be enough to restart…[Read more]

Yeah, you are quite right, I reset the parameters as your recommendation, in which:

1. DL=0;
2. Linear trend

I am using a dataset mainly located in the urban area, I re-run the “Sparse Point Selection” and “Graph Creation”, but stopped at “Connection Processing”, the runtime window shows as below

In fact, I do this step in last evening, and…[Read more]

in the advanced parameters you can change the size of the maximum portion of data to process. lowering that number will limit the amount of processed data.
however, in your case you have more than enough memory. I suppose you have an outdated version with a bug.
do you have the manage version module to download a new one?