10FMT2

# 10FMT2 - Midterm#2 of ECE301 Prof Wang's section...

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Midterm #2 of ECE301, Prof. Wang’s section 6:30-7:30pm Wednesday, October 13, 2010, EE 170, 1. Please make sure that it is your name printed on the exam booklet. Enter your student ID number, e-mail address, and signature in the space provided on this page, NOW! 2. This is a closed book exam. 3. This exam contains multiple choice questions and work-out questions. For multiple choice questions, there is no need to justify your answers. You have one hour to complete it. The students are suggested not spending too much time on a single question, and working on those that you know how to solve. 4. Neither calculators nor help sheets are allowed. Name: Student ID: E-mail: Signature:

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Question 1: [26%, Work-out question] 1. [4%, Outcome 1] What does the acronym “LTI” stand for? What is the deﬁnition of an impulse response? Consider the following discrete-time LTI system: When the input is a unit step function x [ n ] = U [ n ], the output is y [ n ] = ( 0 if n < 0 2 - (0 . 5) n if n 0 . (1) 2. [10%, Outcome 3] What is the impulse response h [ n ] of this system?
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10FMT2 - Midterm#2 of ECE301 Prof Wang's section...

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