Rician Distribution K factor Calculation

Hi Can anyone tell me what is the parameter sigma stands in rician distribution when we calculate K factor.Is sigma represent standard diviation or mean or variance.And what does S stand for.

The equation i am using to calculate K is 10log(A^2/2*sigma^2)

Thanks in advance.

[yusra Ch]

what does A and sigma stand for?

Answer 1

[Irfan]

Hi Dilan Rician factor K=s^2/2sigma^2