ECE130A-Midterm-F09_solution

ECE130A-Midterm-F09_solution - Name: ECE 130A: Signal...

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

View Full Document Right Arrow Icon
Name: ECE 130A: Signal Analysis and Processing Prof. Michael Liebling Fall 2009 TAs: Aseem Wadhwa, Hosein Mahjoubi Wednesday, 26 October 2009 11:00am–12:15pm University of California, Santa Barbara Midterm Exam Instructions: Write your firstname, lastname, and perm number on each page. This is a closed-book exam: no documentation is allowed, except for the formulary provided on a separate sheet and a 1-page cheat-sheet. No calculators are allowed. You have until 12:15 pm to complete this exam. TA’s will not answer any questions during the exam. Part I. Review (20points) For each question, select one answer only by checking the box corresponding to the correct answer. (2 pts ) 1. Convolution (a) (2pts) Which one of the following drawings of x ( t - τ ) is correct given the function x ( τ ) and t < 0 as sketched in the drawing on the right? τ x ( τ ) t τ t x ( t- τ ) τ t /2 t x ( t- τ ) τ -t x ( t- τ ) τ -t x ( t- τ ) τ -t /2 -t x ( t- τ ) 4 τ t x ( t- τ ) (10 pts ) 2. Systems Properties (a) (2pts) The system characterized by y ( t ) = 5 x ( t ) is memoryless. 4 True False (b) (2pts) The system characterized by y ( t ) = x ( t /2) + x (2 t ) is time-invariant. True 4 False (c) (2pts) The system characterized by y ( t ) = sin( t ) x ( t ) is linear. 4
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.

This note was uploaded on 12/05/2009 for the course ECE 130A taught by Professor Madhow during the Spring '07 term at UCSB.

Page1 / 4

ECE130A-Midterm-F09_solution - Name: ECE 130A: Signal...

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