102_1_midterm2

102_1_midterm2 - Systems and Signals Lee Fall 2011-12 EE102...

Info iconThis preview shows pages 1–4. 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 Document Right Arrow Icon

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

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

Unformatted text preview: Systems and Signals Lee, Fall 2011-12 EE102 Midterm Exam 2 NAME: ID: You have 2 hours for 4 questions. • Show enough (neat) work in the clear spaces on this exam to convince us that you derived, not guessed, your answers. • Put your final answers in the boxes at the bottom of the page. Closed notes, closed book, 1 letter sized sheet allowed. Problem Score 1 2 3 4 Total 1 Problem 1. (25 Points) Please use scaled and shifted Δ( t ) and rect ( t ) to express the following signal. (10 pts) Please also show what is the Fourier transform for this signal?(15 pts) 1 2 3-1-2-3 1 2 x(t) Solution: The original signal can be decomposed into three signals: 1 2 3-1-2-3 1 2 x ( t ) = 2Δ 1 2 ( t- 1)) + 2Δ( 1 2 ( t + 1))- rect ( 1 2 t ) (10 pts) By using the properties of Fourier transform, X ( jω ) = ( e- jω + e jω )( 2 sin 2 ω ω 2 )- sinω ω 2 Problem 2. (25 Points) Find out the Fourier transform of the following signals....
View Full Document

{[ snackBarMessage ]}

Page1 / 6

102_1_midterm2 - Systems and Signals Lee Fall 2011-12 EE102...

This preview shows document pages 1 - 4. Sign up to view the full document.

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