ece_350_hwset1_new

ece_350_hwset1_new - ECE 350 Spring, 2010 Homework Set 1...

Info iconThis preview shows pages 1–3. Sign up to view the full content.

View Full Document Right Arrow Icon
ECE 350 Spring, 2010 Homework Set 1 Read Chapter 1 of Lathi (pp. 68 – 131). 1. Find the energy in each of the signals below: a. x(t) b. x(t) -2 2 2 t t 0 5 2 c . d . x(t) x(t) t 2 1 0 1 3 4 t 2 1 0 2 3 2. Let E x denote the energy in some signal, x(t), and let k be a constant. Find the energy in: a. x(-t) b. x(t – k) c. k x(t) d. – x(t) 3. Consider x(t) as shown in problem 1b. Graph each of the following: a. x(t – 2) b. 4 x(t) c. x(-t) d. x(t + 3) e. x(2t) f. x(t/2) 4. Find the power and the rms values for each of the signals below: a. x(t) t 3 -3 -5 0 5 10 15 20 b. x(t) = 10 (for all t) c. x(t) = -10 (for all t)
Background image of page 1

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

View Full DocumentRight Arrow Icon
ECE 350 Spring, 2010 d. x(t) t 3 0 5 10 15 -10 -5 e. x(t) t -5 0 5 10 15 3 5. Let P x denote the power in some signal, x(t), and let k be a constant. Find the power in: a. 4 x(t) b. – x(t) c. k x(t) 6. Find the power and the rms value for each of the signals below: a. 10 cos(200t) b. -4 sin(2 π 1000t + 20 ° ) c. 2 + 4 cos(200t) d. 10 cos(200t) + 4 sin(200t) Hint: See p. 72, part d 7a. Find the energy in the signal: x(t) = cos(200t). 7b.
Background image of page 2
Image of page 3
This is the end of the preview. Sign up to access the rest of the document.

This document was uploaded on 02/27/2010.

Page1 / 5

ece_350_hwset1_new - ECE 350 Spring, 2010 Homework Set 1...

This preview shows document pages 1 - 3. Sign up to view the full document.

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