Can alos2App.py process several pairs or only one?

[itingwanggeo]

Hello everyone,
I am trying to process ALOS-2 ScanSAR WD1 level 1.1 data (WBD and WWD) with alos2App.py in ISCE. I can process a pair, but I would like to know whether alos2App.py can process several pairs in different acquisition modes in the workflow? I know alosStack can process several pairs like a network, but my data are in two different modes (WBD, WWD). I read the example xml for alos2App.py that just assigned one reference and one secondary product folder. Can I assign more secondary data?

I tried to assign the secondary data folder that contains two acquisitions, but here comes the error:
2024-02-15 16:33:34,465 - isce.insar - INFO - ISCE VERSION = 2.6.1, RELEASE_SVN_REVISION = ,RELEASE_DATE = 20220811, CURRENT_SVN_REVISION =
ISCE VERSION = 2.6.1, RELEASE_SVN_REVISION = ,RELEASE_DATE = 20220811, CURRENT_SVN_REVISION = None
The currently supported sensors are: [‘ALOS2’]
Traceback (most recent call last):
File “/home/iting/anaconda3/envs/ISCE/lib/python3.8/site-packages/isce/applications/alos2App.py”, line 1173, in
insar.run()
File “ /home/iting/anaconda3/envs/ISCE/lib/python3.8/site-packages/isce/components/iscesys/Component/Application.py ”, line 144, in run
exitStatus = self.main()
File “ /home/iting/anaconda3/envs/ISCE/lib/python3.8/site-packages/isce/applications/alos2App.py”, line 1061, in main
self.runPreprocessor()
File “/home/iting/anaconda3/envs/ISCE/lib/python3.8/site-packages/isce/components/isceobj/Alos2Proc/Factories.py”, line 40, in call
return self.method(self.other, *args, **kwargs)
File “/home/iting/anaconda3/envs/ISCE/lib/python3.8/site-packages/isce/components/isceobj/Alos2Proc/runPreprocessor.py”, line 41, in runPreprocessor
firstFrameSecondary = ledFilesSecondary[0].split(‘-‘)[-3][-4:]
IndexError: list index out of range

Is there anyone know how to deal with this problem? Can alos2App.py process several pairs or only one?

Data I used: (Only process swath 5)
Reference data folder:
BRS-HH-ALOS2114003150-160703-WBDR1.1__D-F5.jpg
BRS-HV-ALOS2114003150-160703-WBDR1.1__D-F5.jpg
IMG-HH-ALOS2114003150-160703-WBDR1.1__D-F5
IMG-HV-ALOS2114003150-160703-WBDR1.1__D-F5
LED-ALOS2114003150-160703-WBDR1.1__D
TRL-ALOS2114003150-160703-WBDR1.1__D
VOL-ALOS2114003150-160703-WBDR1.1__D
summary.txt
Secondary data folder:
160327:
160508:
BRS-HH-ALOS2105723150-160508-WWDR1.1__D-F5.jpg
BRS-HV-ALOS2105723150-160508-WWDR1.1__D-F5.jpg
IMG-HH-ALOS2105723150-160508-WWDR1.1__D-F5
IMG-HV-ALOS2105723150-160508-WWDR1.1__D-F5
LED-ALOS2105723150-160508-WWDR1.1__D
TRL-ALOS2105723150-160508-WWDR1.1__D
VOL-ALOS2105723150-160508-WWDR1.1__D
summary.txt

Thanks for any help!

[hillsonghimire]

I faced similar issue while processing for the WBD mode in ion-filt step.

CunrenLiang/insarzd#2 (comment)

Could you also provide a sample XML configuration file that you used and the command you used to run it so, it could be reproducible?

[itingwanggeo]

Hi, here is my input xml configuration file:

[CunrenLiang]

alos2App.py is designed to process only one pair of images. WWD is rarely used by ALOS-2. In the future, we might add the range band pass filtering capability to support cross WBD-WWD stacks.

For now, you can use alos2App.py to process the stack pair by pair, and use the same geocode bounding box for all pairs. Then you will get a stack of coregistered and geocoded interferograms ready for time series analysis.

[rtburns-jpl]

Closing based on CunrenLiang's response.

[weiyuhang1111]

Hello, I encountered a similar problem. Did you solve it? Could you please share how you resolved it?