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Exam1F10

Exam1F10 - EE538 Digital Signal Processing I Fall 2010 Exam...

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Unformatted text preview: EE538 Digital Signal Processing I Fall 2010 Exam 1 Friday, Oct. 1, 2010 Cover Sheet Test Duration: 60 minutes. Coverage: Chapters 1-5. Open Book but Closed Notes. Calculators NOT allowed. This test contains two problems. All work should be done in blue books. You must show all work for each problem to receive full credit. Do not return the exam itself; just your blue book. Prob. No. Topic(s) Points 1. LTI Systems: Properties, 55 Transfer Functions, Frequency Response 2. DT Autocorrelation, Cross-Correlation 45 Correlation in terms of Convolution 1 EE538 Digital Signal Processing I Exam 1 Fall 2010 Problem 1. [55 points] Be sure to label each part carefully in your blue book. (a) Determine and plot the autocorrelation sequence r xx [ ‘ ] for x [ n ] below. x [ n ] = { 1 , 1 ,- 1 , 1 } (1) (b) Determine and plot the autocorrelation sequence r zz [ ‘ ] for z [ n ] defined in terms of x [ n ] in Eqn. (1) as z [ n ] = x [ n- 4] (c) Determine and plot the autocorrelation sequence r zz [ ‘...
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Exam1F10 - EE538 Digital Signal Processing I Fall 2010 Exam...

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