ECE
ECE130A-Midterm

# ECE130A-Midterm - ECE 130A Signal Analysis and Processing...

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ECE 130A: Signal Analysis and Processing Prof. Michael Liebling Fall 2008 TAs: Jingning Han, Kumar Viswanatha Wednesday, 29 October 2008 Electrical & Computer Engineering Dept. University of California, Santa Barbara Name: 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. 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 (2 τ - t ) is correct given the function x ( τ ) and t < 0 as sketched in the drawing on the right? τ x ( τ ) t τ t t /2 x (2 τ - t ) τ t /2 t x (2 τ - t ) τ -t /2 -t x (2 τ - t ) τ -t x (2 τ - t ) τ -t /2 -t x (2 τ - t ) τ t /2 t x (2 τ - t ) ( 10 pts ) 2. Systems Properties (a) (2pts) The system characterized by y ( t ) = x ( t + 1) is memoryless.

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