Principle of Communications

Homework 2, Due 12/8 (Since Problem 3 is not finished, the due date is delayed.)

Problem 1

RC circuit

RC_circuit.mdl

RC_circuit_noise.mdl

Page 81, Problem 1.14

Use different frequencies of sinusoids to explain the low-pass property of a RC circuit.

 

Problem 2

RL circuit

RL_circuit_noise.mdl

Page 84, Problem 1.23

Use different frequencies of sinusoids to explain the high-pass property of a RL circuit.

 

Problem 3

A random telegraph signal

telegraph_circuit_noise.mdl

Page76.m

Page 81, Problem 1.14

Write codes to calculate the autocorrelation and power spectral densities of the input

and the output of the low-pass RC filter.

 

ftp your homework to

ftp://stud@140.127.208.113

in the directory communication\HW2

by the following format:

檔案名稱:hw#_學號.zip

例如:資工同學,作業2

   檔案名稱:hw2_a09355xx.zip

注意:檔名不能有中文

The password is given in class.