SARPROZ ©

download the last pcodes (through the “manage version” module), I included a version check and an automatic choice between flip and flipdim

this is a new matlab function: flip.
if you get an error, it means u do not have it, that is, u have an older matlab
I’ll insert a simple version check.
U can quickly solve it by copying and renaming the function “flipdim” to “flip”

IMPORTANT NOTE:
to upload mat and log files, please zip them.
Without them I cannot track the error
Anyway, I guess that you did not download the last sw version, did you?
To do so, use the “manage version” module.
I think that that error was a temporarily caused by a sw update and it was already fixed…
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Hi Ana,
the size you have chosen is even smaller than the (default) reference window used for the coregistration (64 pixels as you can see in the coregistration parameters).
Maybe if you make those numbers match it will work (I never tested the smaller possible area to coregister).
Usually, even for test or educational purposes, we take bigger…[Read more]

Hi Ana,
from the pictures you are attaching here I cannot see your problem.
Did you generate the kmz file of the Reflectivity Map? Only with that kmz you can see if your image has been geocoded well.
Please consider one factor more: for precise geocoding, you (the software) need to consider also the external DEM.
if you geocode the reflectivity…[Read more]

Hi Ana

1) if you plot the GCP in geographic and in SAR coordinates, the 2 pictures will not be matching, because SAR images are plotted with the range in the vertical direction and azimuth in the horizontal one. If you want to plot the SAR image in geographic coordinates, you can press the “Mean Kml” button (in the GCP selection module): you will…[Read more]

Just a couple of comments to close this topic

Ivana: thanks to your case I inserted a couple of minor corrections to provide a better match between the SAR and geographic coordinates in the Master area selection, SLC module. Pcodes are online, compiled version for windows is uploading, and the linux compiled version will be available in the next…[Read more]

The height is considered. However, what is used is the height coming with the SAR image, which is usually 1 value for the whole image. We can work at improving it. But we would need to get 2 sample images in which the shift is present and significant.
Ivana, could you share 2 images out of your case?

Hi Farnoosh,
some comments below:

1. in the software manual, you can check how the software can ingest external DEMs at the paragraph “1.4.2.1. External DEM Selection”
2. probably the easiest way for you is to create a geotiff DEM (with an other software) and import it in Sarproz
3. anyway Sarproz can manage TDX bistatic pairs and respective…[Read more]

Milan:
the data were stored in a flipped format. Now the data extractor has been generalized and the image has the right orientation.
I saw the big orbital data errors. However, we did not test the phase flattening yet.
Let me know if you still get big ramps. If so, we’ll also generalize an orbit correction.
Pcodes and compiled version for windows…[Read more]

For those who cannot use the “Manage Version” module to download the update, I paste here temporary links for direct download:

– pcodes: http://we.tl/H5B9HSLNfZ
– compiled for linux: http://we.tl/wW9CEUMhnY
– compiled for windows: http://we.tl/FO7E90lyZK

Hi Ana,

at this moment the “super-MST” is not implemented yet. The options are those you can see in the menu (star, mst, delaunay, small temp baselines, full graph and so on). However, as you can see you have the option to load your own graph. So, you can design yourself a kind of “super-MST”. You just need to learn the format of a graph. For…[Read more]

CNU_lee: at this moment you cannot mix gamma RSLC images with new SLC images… in principle it’s possible but at this moment the sw is not considering such option… we will implement it in the future, but for now I suggest you to find a different solution…

Milan: I see such thing for the first time. Probably the orbital data are flipped. Can…[Read more]

right, this works:
RS2_OK55634_PK527325_DK467628_F23_20140808_163838_RST2_VV_SLC

sorry, the string _RST2 must be included but the directory must also terminate with _SLC
if you rename it e.g. RS2_OK55634_PK527325_DK467628_F23_20140808_163838_VV_RST2_SLC it will work

Hi Eric,
you have a dataset of mixed multiple polarizations (HH single pol and HH/HV multiple pol). As a consequence, the only choice is using HH. Would you have had a choice, the suggestion is never to use cross-polarizations for multitemporal analyses. In the future we may include polarimetric techniques and make use of all channels, but this is…[Read more]

WINDOWS USERS:
there was a hidden bug in the use of PSFTP.EXE which was preventing from downloading new versions (in windows).
Please find the new pcodes here: http://we.tl/W0qiUVVYm3
And also the new compiled version for windows here: http://we.tl/TtmUbku9ym
Many changes are going on, consider it as a beta version.
In case of new bugs, you can…[Read more]

Thanks!
it was indeed a bug. But in the future we’ll remove the fine APS processing in the MISP module, because it’s not really needed.
The updated version (which is in fact coming with many new things -check the updates list!-) is already online.
cheers