Quiz-1-w-08-sol

Quiz-1-w-08-sol - California State Polytechnic University...

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By: Z. Aliyazicioglu ECE 308-1-1 California State Polytechnic University, Pomona Electrical & Computer Eng. Dr. Zekeriya Aliyazicioglu ECE 306 - 02 Introduction to Discrete Time Signals & Systems Quiz #1 Solution Name :__________________________ January 16, 2008 1. Consider the following signal ( ) 2cos(1000 60 ) π =+ D a xt t a. The signal () a x t is sampled with a sampling frequency 600samples/s = S F . Determine the discrete-time signal x n . b. What is the analog signal we can obtain from x n if we use 600Hz = S F for reconstruction process? 2. The discrete-time signal 1 () 4 s i n ( ) 10 = x nn . We want to have a signal-t-noise ratio of at least 60dB. a. How many bits are needed to achieve the desired signal to noise ratio?
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This note was uploaded on 03/11/2008 for the course ECE 306 taught by Professor Aliyazicioglu during the Winter '08 term at Cal Poly Pomona.

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