Goldstein Phase Filtering esa_snappy doesn't do anything to the product

Microwave Toolbox
1

Hello everyone,

I feel super happy to join the community!

I’ve been working on a script to create DEM using esa_snappy (I’m using the new SNAP 12 version) and every step on my workflow is going great except the golstein phase filtering.
For each step (topsar split, apply orbit file, back geocoding, enhanced spectral diversity, interferogram and deburt) the products are exactly the same as the ones generated on SNAP application but, for some reason, goldstein phase filtering doesn’t seem to be doing anything to the product.
Even when I use the products generated by my code on SNAP for goldstein I get the filtering done.

This is the code I’m using:

def goldstein_phase_filtering(product):
    parameters = HashMap()
    print('Apply Goldstein Phase Filtering...')
    parameters.put('alpha', 1.0)
    parameters.put('FFTSizeString', '64')
    parameters.put('windowSizeString', '3')
    parameters.put('useCoherenceMask', False)
    parameters.put('coherenceThreshold', 0.2)  
    output = GPF.createProduct("GoldsteinPhaseFiltering", parameters, product)
    return output

goldstein = goldstein_phase_filtering(read_product(r'_results\deburst.dim'))
write(goldstein, r'_results\goldstein', 'BEAM-DIMAP')

Do you anything about this? Any help or insights are welcome!

Thank you so much,
Beatriz