hw4_600 - ECE-600 Introduction to Digital Signal Processing...

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

View Full Document Right Arrow Icon

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

View Full DocumentRight Arrow Icon
This is the end of the preview. Sign up to access the rest of the document.

Unformatted text preview: ECE-600 Introduction to Digital Signal Processing Winter 2011 Homework #4 Feb. 5, 2011 HOMEWORK ASSIGNMENT #4 Due Fri. Feb. 11, 2011 (in class) 1. Say that a signal x ( t ) is sampled at rate 1 /T 1 Hz, producing x [ n ], and then sinc-reconstructed at rate 1 /T 2 Hz, producing y ( t ). Assuming that x ( t ) is bandlimited to 1 2 T 1 , give a simplified expression for Y c ( j ) in terms of X c ( j ). ( Hint : Relate X c ( j ) to X ( e j ), then relate X ( e j ) to Y c ( j ), and finally relate X c ( j ) to Y c ( j ). In doing so, focus on the first Nyquist zone: (- , ). The final relationship should not include a summation of spectral copies!) 2. Suppose again that a signal x ( t ) is sampled at rate 1 /T 1 Hz, producing x [ n ], and then sinc- reconstructed at rate 1 /T 2 Hz, producing y ( t ). Unlike the previous problem, we now allow the possibility of aliasing. But, to simplify matters, we consider the case of real-valued sinusoids....
View Full Document

This note was uploaded on 02/21/2011 for the course ECE 600 taught by Professor Clymer,b during the Spring '08 term at Ohio State.

Page1 / 2

hw4_600 - ECE-600 Introduction to Digital Signal Processing...

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

View Full Document Right Arrow Icon
Ask a homework question - tutors are online