ELEC 470, Spring 1998
Prof. Rich Kozick

Homework 7

Date Assigned: Wednesday, March 25, 1998
Date Due: Monday, March 30, 1998

  1. Reading: Please read Chapter 6. We will not discuss Sections 6.5 and 6.6 on PPM.

  2. Please solve Problem 6.6 in the text.

  3. Please solve Problem 6.7 in the text.

    You should notice that FDM/SSB uses the minimum possible bandwidth (assuming that we know nothing else about the message signals). Can you think of a way to modify the TDM/PAM system so that it uses the same bandwidth as the FDM/SSB system?
    (Hint: What if you use a pulse shape that is not a rectangle? Think of the time-domain view of reconstructing an analog signal from samples.)

  4. Please solve Problem 6.15.

  5. Please solve Problem 6.17.
Thank you.