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Unformatted text preview: GEORGIA INSTITUTE OF TECHNOLOGY SCHOOL of ELECTRICAL and COMPUTER ENGINEERING ECE 2025 Spring 2009 Problem Set #6 Assigned: 6-Feb-09 Due Date: Week of 16-Feb-09 Reading: In SP First , Chapter 4: Sampling and Aliasing H) Please check t-square daily. All official course announcements are posted there. BOTH of the STARRED problems will have to be turned in for grading. A solution will be posted to the web. Some problems have solutions similar to those found on the CD-ROM. Your homework is due in recitation at the beginning of class. After the beginning of your assigned recitation time, the homework is considered late and will be given a zero. Please follow the format guidelines (cover page, etc.) for homework. Three-Part Format for HW Solutions: For each homework problem, three distinct pieces of information are required for a complete solution: (a) Concepts: Write at least one, but not more than three, keywords that describe what the problem is about. Keywords can be any terms listed in the Index of the SP-First textbook. (b) Approach: Write a clear explanation of how you are going to solve the problem. Write in complete sentences. This explanation should be written with a minimum number of mathematical formulas, and it should also be written so that it is independent of the specific numerical values in the problem. (c) Details: Carry out the solution of the particular problem. Details mean getting the algebra correct, making precise plots, and doing the numerical calculations are the key. Ideal C-to-D Converter Ideal D-to-C Converter x ( t ) x [ n ] y ( t ) f s = 1 T s f s = 1 T s Figure 1: Ideal sampling and reconstruction systems. An ideal C-to-D converter samples x.t/ with a sam- pling period T s D 1=f s to produce the discrete-time signal xOEn...
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