Speckle noise standard deviation

Microwave Toolbox
1

Hello everyone :wave:

I notice that speckle noise standard deviation in the Refined Lee polarimetric speckle filter is calculated as “1 / sqrt(number_of_looks)”.

Is anyone familiar with this derivation? Can you point me to the right literature?

Many thanks!

2

There should be a reference in the SNAP help (inside the SNAP desktop GUI)

3

Hello @mengdahl,

Yes, found it in this reference: https://ieeexplore.ieee.org/document/4689358

Thank you~

1 Like