20092ee132A_1_hwk4_sol

# 20092ee132A_1_hwk4_sol - EE132A, Spring 2009 Communication...

This preview shows pages 1–2. Sign up to view the full content.

This preview has intentionally blurred sections. Sign up to view the full version.

View Full Document
This is the end of the preview. Sign up to access the rest of the document.

Unformatted text preview: EE132A, Spring 2009 Communication Systems Prof. John Villasenor Handout #11 TA: Pooya Monajemi and Erica Han Homework 4 Solutions 1. The autocorrelation function is the inverse Fourier transform of the power spectral density. Then 1 1 2 1 ( ) { ( )} { (2 )} sinc 2 2 t p F P f F fT T T = = = where 2 1 2 2 t T t T t T otherwise | | ,| |< = , 2. The bandwidth required for transmission of the raised cosine pulse is give by (1 ) BW W = + where W is the bandwidth of the Nyquist channel and is the roll off factor. (a) The bandwidth of the Nyquist channel is 1 32 2 2 b b R W KHz T = = = where b T is the bit duration and b R is the bitrate. (b) The bandwidth of the Nyquist channel is now 1 1 8 2 2 2 4 s s b R W KHz T T = = = = where s T is the duration of each 16-level PAM symbol which is the duration of 4 bits....
View Full Document

## This note was uploaded on 02/05/2012 for the course EE 132B taught by Professor Izhakrubin during the Spring '09 term at UCLA.

### Page1 / 5

20092ee132A_1_hwk4_sol - EE132A, Spring 2009 Communication...

This preview shows document pages 1 - 2. Sign up to view the full document.

View Full Document
Ask a homework question - tutors are online