more hints for Assignment 2

Ed Casas (edc@ece.ubc.ca) Thu, 3 Feb 2000 22:20:51 -0800 

Date: Thu, 3 Feb 2000 22:20:51 -0800
From: Ed Casas <edc@ece.ubc.ca>
Subject: more hints for Assignment 2



For Question 4.5 you need to know the rms value of a Rayleigh
signal but the definition of sigma in section 4.6.1 of the book
is misleading.  Sigma is the rms value of each of two zero-mean
Gaussian r.v., say x and y.  If you form a r.v. r=sqrt(x*x+y*y),
then the rms value of r is sqrt(2)*sigma.

For Question 4.10, you need to know that pi/4 DQPSK transmits 2
bits/symbol and GMSK transmits 1 bit/symbol.

-- 
Ed Casas   edc@ece.ubc.ca   http://casas.ece.ubc.ca   +1 604 822-2592