final - Digital Signal Processing I (ECE 410, Summer II...

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

View Full Document Right Arrow Icon
Digital Signal Processing I (ECE 410, Summer II 2009) University of Illinois at Urbana-Champaign Electrical and Computer Engineering Final exam 1. (a) (5 points) Explain both advantage and disadvantage of finite impulse response (FIR) filters over infinite impulse response (IIR) filters. (b) (5 points) Explain the impact of zero-padding and truncation on the frequency response (DTFT) of a signal. (c) (5 points) Explain the relationship between DTFT X d ( ω ), DFT X [ k ], and Z-transform X ( z ) of a signal x [ n ]. 2. Answer the following questions. Provide your reasoning briefly. (a) (5 points) Is the system y [ n ] = 1 n 2 x [ n ] stable? (b) (5 points) Is the system impulse response h [ n ] = δ [ n ]+ 10 9 δ [ n - 1] + 2 n u [ - n - 1] stable? (c) (5 points) Is the system y [ n ] = 10 i = - 10 e j ( n 20 ) i x [ n - i ] time-invariant? If it is so, what is the impulse response h [ n ]? (d) (5 points) Does the system impulse response
Background image of page 1

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

View Full DocumentRight Arrow Icon
Image of page 2
This is the end of the preview. Sign up to access the rest of the document.

Page1 / 3

final - Digital Signal Processing I (ECE 410, Summer II...

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