mid1_501 - ECE-501 Introduction to Analog and Digital...

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Unformatted text preview: ECE-501 Introduction to Analog and Digital Communications Winter 2008 Midterm #1 Feb. 6, 2008 MIDTERM #1 EXAMINATION Name: Instructions: Do not turn over this cover page until instructed to do so. You will have 48 minutes to complete this exam. You are allowed to consult the letter-sized piece of paper which you have prepared beforehand. You are not allowed to consult any other books, notes, or oracles. Please write clearly and include sufficient explanation with all of your answers. If you write on the backs of the pages, indicate this so the grader does not miss your work. Do not unstaple the test pages. P. Schniter, 2008 1 1. (15 pts) In the physical channel model below, assume that the indirect path gain equals 1 / 2 while the direct path gain equals 1. As usual, the speed of light is 3 10 8 m/sec. 3 km 6 km s ( t ) x ( t ) (a) Along the direct path, how long (in seconds) does the signal get delayed? Along the indirect path, how long?...
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This note was uploaded on 10/25/2009 for the course ECE 501 taught by Professor Schniter,p during the Spring '08 term at Ohio State.

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mid1_501 - ECE-501 Introduction to Analog and Digital...

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