What is a zero mean signal?
A zero mean random signal is uniformly distributed between limits – a and + a and its mean square value is equal to its variance.
What is expected value in signal processing?
The Expected value operator is a linear operator that provides a mathematical way to determine a number of different parameters of a random distribution. The downside of course is that the expected value operator is in the form of an integral, which can be difficult to calculate. provided the integral exists.