SARPROZ ©

If you don’t understand Matlab,
then maybe not much to do…

I try to give you a hint to read the message shown by disp_err in any case..:
The list of files tells you the inter-dependency between them (the sequence of calls) at the moment the error occurred.
The list starts from the upper level.
You were in Site Processing (“analisi_sito”), you…[Read more]

No, I am getting exactly the same results also in the newest compiled version… together with lots of

stima_freq: WARNING!!

NaNs detected in input matrix: forcing them to zero!!

I do know where the problem can be…

I am sorry, that was not the compiled version, but older matlab version, so that is probably the problem… trying it once more in the newer version.

I.

Hello again,

using the compiled version of Aug 31 (no newer), I was processing S1 data, and the interferograms and everything were nice using automatically-downloaded SRTM. Now, I used my own DEM, and the interferograms look weird (see the itf and the DEM visualization).

I admit I have a DEM with such a weird form (corner cut) and I used it,…[Read more]

No, there are not two points geolocated at the same position (according to CSV, as point 699 can be clicked on, point 700 gives this error and 701 is somewhere else).

Here is the output from disp_err (putting it all, but I am afraid that most of it is related to the other instance run in the compiled version (this instance is run under matlab,…[Read more]

Hi Ivana,
the error there is related to the SLC data module (by the way, to check it, you just need to type “disp_err” at the matlab command prompt -if you work with the compiled version, just copy the lasterror.mat in the working directory of any Matlab session [disp_err.p works independently and even without license]-).
Sometimes it may look…[Read more]

Dear Ivana,

Thanks for advise and explanation, I get it

Best Regards

Ana

Hello Ana,

(estimated) residual height value is the HEIGHT WRT DEM.

SIGMA HEIGHT is the estimated standard deviation of the HEIGHT (resp. HEIGHT WRT DEM, they are the same), for its background, see another discussion thread. If you are interested, ask more, as it was not yet finished but I do not have time and concentration for it now.

The…[Read more]

once again

Yes. In fact, all the pixels displayed correspond to one corner reflector. I am playing with the data to see if the reflectors are really visible, the interpolation of the position and phase will be the next step for me to try.

But the problematic pixel is the one I expect to be the center, with the highest intensity. I did not meet this problem…[Read more]

Dear Prof.Daniele

I got results from CSV file, but I cant find residual Height value.
What mean of “HEIGHT WRT DEM and SIGMA HEIGHT” in CSV column?
If Residual Height = Height – External DEM, Could I say that Residual Height = HEIGHT – HEIGHT WRT DEM (based on CSV column)

Besides that, in SARPROZ, how I can generated and get data “phase r…[Read more]

you insist willing to include dependent pixels, and this is a clear example that dependent pixels create only problems, without increasing a single little bit the information that you can extract
in that plot you have 2 scatterers, one covering 3 pixels, the other one covering 2 pixels
the height you estimate is fake, because it’s pixel…[Read more]

Yes, the .off file is present and looks reasonably.

And slave image is also in the EXT folder, except for the fact that it is not VV, but HH, and the corresponding jpg looks reasonably, similar to the master.

By the way (the processing is not important, I am doing it just to check and see), I could not open the site processing (did you see it…[Read more]

Hi Ivana,

by looking at the log files, I would suggest the following:

Checking in /EXT folder the file 20150123_20150324_init.off and check if there is anything written inside.

It would also be helpful to check the intensity of both the master image and slave image. the master will be in FITTED folder as the name 20150213.jpg. The slave image…[Read more]

Hi Ivana,

I can’t see your log in the forum… Can you find another way to pass the log file?

thanks,

yuxiao

type “fast” in Matlab
and then use the following expression
[Rg,Az]=geo2SAR(lat,lon,h,el,Master,handles.SiteParam.DirSite);
el=1 corresponds to WGS84
otherwise input a string like GRS80 or the ellipsoid you need

to extract phase/amp values the easiest way is to use the small area.
when you load a small area, complex numbers are accessible in the…[Read more]

Hello Yuxiao,

just for sure, I am reporting failed coregistration (for 1 image) on different scene set. I cannot find any reason (error) for this. And the error does not let me go further.

Thank you, Ivana