Certain continuous time communications channel can be modeled as signal plus an independent additive noise
(a) The receiver must process 
for the purpose of determining the value of the message random variable M. Argue that a receiver which computes and bases its decision exclusively on, for 
(b) What are the issues in determining which value of 
to use? Is there a best value?
Let 
be a random process with constant mean 
and covariance function,
(a) Show that an m.s. derivative process 
exists here.
(b) Find the covariance function of 
