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Unformatted text preview: GEORGIA INSTITUTE OF TECHNOLOGY SCHOOL of ELECTRICAL & COMPUTER ENGINEERING FINAL EXAM DATE: 2-May-05 COURSE: ECE-2025 NAME: GT #: LAST, FIRST (ex: gtz129a ) Recitation Section: Circle the date & time when your Recitation Section meets (not Lab): L05:Tues-Noon (Chang) L06:Thur-Noon (Ingram) L07:Tues-1:30pm (Chang) L08:Thurs-1:30pm (Zhou) L01:M-3pm (Williams) L09:Tues-3pm (Casinovi) L02:W-3pm (Juang) L10:Thur-3pm (Zhou) L03:M-4:30pm (Casinovi) L11:Tues-4:30pm (Casinovi) L04:W-4:30pm (Juang) GTSav: (Moore) Write your name on the front page ONLY. DO NOT unstaple the test. Closed book, but a calculator is permitted. One page ( 8 1 2 00 11 00 ) of HAND-WRITTEN notes permitted. OK to write on both sides. JUSTIFY your reasoning clearly.to receive partial credit. Explanations are also required.to receive full credit for any answer. You must write your answer in the space provided on the exam paper itself. Only these answers will be graded. Circle your answers, or write them in the boxes provided. If space is needed for scratch work, use the backs of previous pages. Problem Value Score 1 30 2 30 3 30 4 30 5 30 6 30 7 30 PROBLEM s-05-F.1:- Ideal C-to-D Converter LTI System H ( z ) Ideal D-to-C Converter--- x ( t ) x [ n ] y [ n ] y ( t ) 6 T = 1 / f s 6 T = 1 / f s In all parts below, the sampling rates of the C-to-D and D-to-C converters are equal to f s = 72 samples/sec, and the LTI system is an IIR filter with two poles at 0 . 9 e j 3 / 4 , and two zeros at e j 3 / 4 , i.e., the system function is H ( z ) = ( 1- q 1 z- 1 )( 1- q 2 z- 1 ) ( 1- p 1 z- 1 )( 1- p 2 z- 1 ) , where p 1 , 2 are the poles and q 1 , 2 are the zeros....
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This note was uploaded on 02/07/2012 for the course ECE 2025 taught by Professor Juang during the Spring '08 term at Georgia Institute of Technology.
- Spring '08