I am wondering if it is possible to calculate the **amplitude and phase** values using the **i and q** real and imaginary complex values SAR values [ ie. amplitude = sqrt (i * i + q * q) and phase = arctan(q/i)] **directly in SNAP** ?

Can I simply do a band math equation and derive the pixel-wise values of amplitude and phase from the i and q values ?

Or it is advisable to rather do it on an external platform like python ? Are there any existing codes for it in that case ?