SARPROZ ©

inside the SLC folder
you should have a directory for each image
each directory should contain all original files (img, led, trl …)

1. read the forum and search for similar questions. Here an example: https://www.sarproz.com/groups/sarproz-group/forum/topic/coregistration/

2. for Sentinel, you can use the orbital approach: https://www.sarproz.com/groups/sarproz-group/forum/topic/new-update-in-sentinel-tops-module/

However, your case may be challenging for the TOPS…[Read more]

Meanwhile, we are working on switching to a more stable source for downloading S1 orbital files. I would expect to have the new source added to the software soon.

yuxiao

1) You are using an old version
2) You are missing required toolboxes.
please request an updated compiled version
best

If you are talking about the normalization option that you can find here: https://sarproz.com/manual/change_detect.html (sorry, I noticed we did not include yet a module description in the manual -but you can find several tutorials on it…-) the idea is the following:
change = filter [ (A1 – A2)/(A1 + A2) ]
The normalization allows detecting any…[Read more]

Here you inputed a threshold on the connections length.
When you do so and you get isolated points, the way to fix it is using the graph analysis and refinement module.
We will implement a modification in the near future to remove isolated points at the time of the graph creation in the APS module, when a threshold on the connections length is inputed.

Thank you!

Hi Steffan,
Menu “MAIN” – “Select Dataset” – “Advavced params”. Uncheck “Auto GE call”.
Best regards,
Artem

For anyone having the same problem, selecting an appropriate manual GCP seems to fix the problem. Roads and other landscape features are properly aligned now. I used a floodlight from a football field and it seems to do the job just fine.

The all zero error seems to be due to ocean, as the satellite data does cover some coastal area.

Thanks for the help.

Thank you very much for help 🙂
I create in the DEM program according to the following steps:
1. Loading data – Select Dataset,
2. Coregistration – SLC Data Processing
3. Performing processes in the Site Processing window marked in red
4.Small Area Processing:
– Select Area
-InSAR Analysis: execution flattening, DEM removal, filtering…[Read more]

1. if DemSynt is not found it means you have to generate it via “external DEM and synthetic amplitude in SAR coordinates” (this could be the reason for wrong georeferencing)
2. if an SRTM tile is all zeros there are 2 possible explanations: (a) it’s on the sea (b) the sw tried to download it but there was a failure. If (b) then delete the all…[Read more]

I am now getting an SRTM error:

sel_par: neither file D:SNAPBejaBeja_SARSLC2017RESULTSDemSynt nor D:SNAPBejaBeja_SARSLC2017RESULTSDemSynt.mat found

files D:SNAPBejaBeja_SARSLC2017RESULTSDemSynt and D:SNAPBejaBeja_SARSLC2017RESULTSDemSynt.mat not found

leggi_srtm: Warning! file D:SNAPBejaBeja_SARSLC2017..SRTMN05W033.hgt is all zeros!!…[Read more]

First of all, check well the data. Usually Sentinel should have good orbits, not requiring a manual GCP (keeping current orbits option works in most cases). By the way, what DEM did you use?
About posts, if he post is big enough and isolated (like those in parking lots) it should be firly well visible also in Sentinel data.
Buildings can be…[Read more]