Normalized difference alpha angle

hello, dear all how to calculate normalize difference alpha angle on s1 SLC Product after H alpha decomposition…

You can first use the H-Alpha Dual Pol Decomposition to get Alpha before and after an incidence:
grafik

Afterwards, it is a simple ratio

grafik
source: https://www.mdpi.com/2072-4292/9/8/764/htm

But note that dual-pol data is not giving perfect decomposition results (compared to quad-pol).

thank you @@ABraun