Electrical Communications Systems
Course No. ECE.09.331
Spring 2010
Assignment 4
Due Monday, April 19, 2010
- A discrete memoryless source has an
alphabet
of seven symbols whose probabilities of occurence are:
| Symbol |
S0 |
S1 |
S2 |
S3 |
S4 |
S5 |
S6 |
| Probability |
0.25 |
0.25 |
0.125 |
0.125 |
0.125 |
0.0625 |
0.0625 |
Design a
Huffman code for this source. Calculate the code
efficiency. Compare this with the efficiency if the symbols are encoded
using an A/D converter.
- Problems in Textbook
- XTRA Credit 1
Write a Matlab function that computes and
displays the spectrum of a single-tone modulated FM signal. The
function input is the FM modulation index bf.
The function should calculate and display the following:
- The signal spectrum computed analytically,
using Bessel Functions
- The signal spectrum computed using the fft
function.