SARPROZ ©

Hello, thanks for the answer. Now I tried changing master (20160603), choosing one with better condition. The area is the maximum common, in order to avoid problems. Some of the images are coregisterred, some are not (18 failed out 51 slaves).
A series of warnings appear, including one that says “Reference to non-existent field ‘ra’.”.
The major…[Read more]

Hi Cecilia,

It would be helpful to check the SLC images you’ve extracted.

In FITTED folder you will find 20160311.jpg.

In EXT/yyyymmdd you will find yyyymmdd_VV.jpg for each slave image.

You don’t need to show us all. A few (but make sure you include the master) will be enough to have an understanding as a start.

Q

Hello,
yes well the area that i cropped has a radius of 12km so I thought it would have been ok. I tried to change the master, but still the same. I cannot plot the images because it actually does not the coregistration. I can only see the master and the slave images one by one.
Anyway here there is the log file.

Hi Cecilia,
even if you have to analyze a small target (the dam), you need a minimum number of good targets to guarantee a correct and precise coregistration. Since it’s an extra-urban area, and you are using Sentinel, I’d suggest you to increase the area you are processing.
Moreover, I see in the grabbed screen that the sw warns you about…[Read more]

Dear Perissin,

Can I use CoSSC products to generate Displacement map using SARPROZ? I want to use either TSX1_SAR_SSC data or TDX1_SAR_SSC data from 2 CoSSC products with 11 days temporal difference to Produce displacement, Is it possible to do with SARPROZ software?

Best Regards,
Bala

can you generate a higher resolution geocoded reflectivity map and send it to me by email?
it could be correct and the footprint might be shifted.
if this is the case, the reason is that footprints are geocoded using the elevation of a point in the middle of the area. You have steep mountains in your area, thus the footprint could be strongly…[Read more]

Dear Perissin,

First I processed with default (without using Ext.DEM) DEM, then I got GCP height as zero (Fig: Without Using Ext.DEM). After I used an Ext.DEM, then I got GCP height (Fig: With Ext.DEM) but it’s located at the out of selected study area (Master area) but inside the footprints. I continued the process, but the reflectivity map is…[Read more]

Can you be more specific about “you have tried with ext. DEM and it’s not working”? what did you do and what is not working? If you got errors, can you paste zipped lasterror.mat and log files?

Dear Perissin,

I tried with an external DEM but it’s not working. Could you please enable the option to give GCP height as manually?
How can I give values through “Force my pixel” option? because for my study area it’s very difficult to match the GCP point (Lat and Lon) with the sample and line in Reflectivity map.

Regards,
Bala

Thank you very much. periz.

The problem was solved. There was one empty radarsat-2 directory which caused the error.

Thanks again!

both directories have no problems.
the sw searches for the file product.xml. if it is not found, it will give the message you reported above.
be aware that the directory you have to select in sarproz is the one containing (not contained!!) the SLC folder.
“Qarn16” and “qarntest” in your case

hi Bala,
the “force my pixel” option simply means that the software is not checking the probability that the pixel you selected is actually corresponding to a radar target. You can use it in the case of glaciers.
Here the problem is the external DEM. When you say that the height is zero, I assume that there is no SRTM in your area. Is it correct?…[Read more]

Hi periz

Please find attached two images, the first one id an example of the content of a directory that works in SARPROZ while the second is an example of a directory that causes the error mentioned above.

Thank you very much for your response.

narginchk has been introduced in Matlab 2011b
I guess then that you have an older Matlab
for compatibility issues we’ll remove those lines
for the moment you could overtake the problem by using a more recent version of matlab… can you?

can u please post the structure of your directory?
where is the product.xml located precisely?