Problem related to orthorectification

Hello All,
I was trying to decompose terrain corrected datasets but was not getting the correct output i.e. pixel values are coming in lakhs and even the final output is corrupt by noise.
Dataset used : ALOS-2 PALSAR quad polarised
Decomposition: Yamaguchi Decomposition

I went through the following procedure:
Calibrate ->Multilook(5:8)->matrix generation(T3)->Matrix decomposition(Yamaguchi)->Speckle (Refined Lee)->Terrain correction(SAR stimulated terrain correction).

I would be of great help to me if someone can help me out to get through this as this is a part of my research work.