azimuth streaks

Added by Mike James about 1 month ago

Hi Piyush,
I have installed isce2-2.3.3 through anaconda3 and processed a pair of ALOS1 L1.0 data in a common way, the filt_topophase.unw.geo file shows some azimuth streaks. Are they related to ionospheric delay or orbital ramp? I reprocess the data with ionospheric correction, the azimuth streaks are still there. My parameter and result files are in the attachment. Can you help me to resolve this problem? Thank you in advance.

Best Regrads,
Mike


Replies (2)

RE: azimuth streaks - Added by Heresh Fattahi about 1 month ago

Mike,

Note that by turning on the ionosphere estimation stripmapApp estimates ionospheric phase but it does not remove it from the interferogram. This is up to user to remove the estimated ionospheric phase from the interferogram. Please see this Jupyter Notebook for more info:

https://github.com/isce-framework/isce2-docs/blob/master/Notebooks/Atmosphere/Ionosphere/stripmapApp_ionosphere.ipynb

Heresh

RE: azimuth streaks - Added by Mike James about 1 month ago

Hi Heresh,
Thanks for your fast reply. I'll try it!

Best Regards,
Mike

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