I did some experiments last year using the Aurora OPUs. We have y = |Ax|^2 where A is roughly iid standard complex Gaussian. I would like to understand the sources of errors in y.
I understand that one source of error in y is due to quanitzation because the camera takes 8-bit measurements. Is there some Poisson noise as well and what is the amount of this Poisson noise?
Furthermore, is there some correction done so that ‘floor’ noise is removed. By floor noise I mean when a zero signal, x, does not give a zero measurement, y?
What other sources of error are there in y?