PolSARpro v.5.1 unzip problem

Microwave Toolbox Polarimetry
1

Hi there!
I am starting to use PolSARpro software.
I would like to open my zipped S-1 data, but when importing them, I got the following error:
‘couldn’t execute “Soft\bin\lib\unzip\7zG_win64.exe”: no such file or directory’

I cannot find where I can link 7zG with PolSARpro.
Everything is by the way working fine with the unzipped data.

Thanks for any suggestion,
Sabrina

2

I had the same problem. You can simply copy 7zG.exe from your 7zip installation to the destined folder (I had to create unzip inside the bin\lib folder first) and rename it to 7zG_win64.exe.

That worked for me.

grafik.png864×189 4.82 KB

3

Thanks Andreas!
This seems a very smart way to trick the software :slight_smile:

PS:Could you suggest me a tutorial on using S-1 with PolSARpro?I am getting lost wth all the functionalities…

Thank you,
Sabrina

4

I don’t know any good, sorry. One reason might be that S1 is only DualPol and not the classic input for many polarimetric applications.

5

:pensive: right.
Still I wanted to play around to see if one can extract useful information from them, too.

6

did you see these topics? Some examples on how to proceed are listed there:

At which point did you get lost? :slight_smile:

7

Hi Andreas!

Thanks for the links - strangely, I hadn’t ever ended up to the second one before :confused:

I was starting by following your “step by step” guide on: [quote=“ABraun, post:6, topic:9582”]

[/quote]

I remember I could not get the channels right. I need to repeat the all process (no time this week).

I keep you posted!
S.

8

Can someone tell me how to subset the data in Polsarpro v5.1?

9

you can define a subset already in the extraction step before the analysis starts.

These instructions might help you:

10

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There is no here to get the subset.

11

You only have to adjust the values in Init Row / Ent Row and Init Col and End Col

12

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image.jpg1873×1097 2.55 MB

And I don’t understand why the image is being displayed like the one in nthe left in polsarpro. The same image in SNAP looks like the one in the right.

13

that looks like PolSARpro misinterpreted some information from the header.

What data are you using and where is it from?

14

This is the quad-pol data for my study area. I also tried the free sample data ( [Vancouver_RS2_FineQuad15_HH_HV_VH_VV_SLC (ConstantBeta LUT)) available at the following MDA website, but still I have the same problem.

https://mdacorporation.com/geospatial/international/satellites/RADARSAT-2/sample-data

I think there is an issue with the software version. I am using beta version 5.1 and I can’t seem to find the installer of any other version.

15

This is the Vancouver dataset.

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16

I just tested the Vancouver QuadPol sample data in PolSARpro 5.1.1 and for me it works fine
I selected “product.xml” in the import step and assigned the tif files to the four S elements
my subset was 5000 / 8150 and 200/ 2000

Pauli

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H/Alpha

grafik
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H/Alpha plane
grafik

Supervised Wishart classification

grafik
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H/Alpha classification

grafik
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17

Even I am performing the same steps but still the same problem is there.

  1. Setting the environment
  2. Import->Spaceborne sensors->Radarsat-2->Quad-pol
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    image.png497×592 29.4 KB
  3. Import->Polsarpro Extract data and Run
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    image.png497×540 24.8 KB

That’s all I am doing

18

Do you have the installer of the version that you are using?

19

unfortunately no, sorry.

Just to go sure: Have you clicked “Read Header” after selecting the SAR product file?

20

Yes, I clicked the “Read header” option.