EE 484
Homework 4
Due Monday, February 22, 2016
Work all 4 problems.
Problem 1. Pulse Coded Modulation (PCM) is to be used to encode a
signal. The signal ranges between the values -4 and +4. There are
EE 484
Homework 1 Solutions
Problem 1. Determine for each of the following whether or not the discretetime system is linear, and/or time-invariant.
a. y(n) = 2 sin[x(n)].
Solution: not linear
b. y(n)
EE 484
Homework 1
Due Monday, January 25, 2016
Work all 6 problems.
Problem 1. Determine for each of the following whether or not the discretetime system is linear, and/or time-invariant.
a. y(n) = 2
EE 484
Homework 3 Solutions
Problem 1. Compute the Fourier transform of the following
x(t) =
1, 1/2 t 1/2,
0, elsewhere
and sketch a plot of its magnitude in the frequency domain.
Solution:
X(f) =
Z
1
EE 484
Homework 2
Due Monday, February 1, 2016
Work all 3 problems.
Problem 1. Let x(n) be an independent and identically distributed random sequence with each x(n) having mean 0 and variance 2. Suppo
EE 484
Homework 2 Solutions
Problem 1. Let x(n) be an independent and identically distributed random
sequence with each x(n) having mean 0 and variance 2. Suppose we form
y(n) =
X
h(k)x(n k)
k=0
where
EE 484
Homework 3
Due Monday, February 8, 2016
Work all 3 problems.
Problem 1. Compute the Fourier transform of the following
x(t) =
1, 1/2 t 1/2,
0, elsewhere
and sketch a plot of its magnitude in th
EE 484
Homework 5
Due 6:00 p.m. on Wednesday, March 2, 2016
Work all 2 problems.
Note: For any Matlab exercises you should submit your Matlab code along
with the rest of your solution to the given pro
EE 484
Homework 4 Solutions
Problem 1. Pulse Coded Modulation (PCM) is to be used to encode a
signal. The signal ranges between the values -4 and +4. There are 3 bits or
8 levels (hence 8 code numbers
EE 484
Homework 5 Solutions
Note: For any Matlab exercises you should submit your Matlab code along with the rest of your
solution to the given problem.
Note: Code is provided for some of the problems