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2 1.5 1 0.5 -0.5 -1 -1.5 -2 10 15 20 25 30 Recall that for a discrete-time sinusoid, the normalized frequency, f, is the ratio of the number of cycles over he number of samples. In the plot above, what is the normalized frequency expressed in decimal?

2 1.5 1 0.5 -0.5 -1 -1.5 -2 10 15 20 25 30 Recall that for a discrete-time sinusoid, the normalized frequency, f, is the ratio of the number of cycles over he number of samples. In the plot above, what is the normalized frequency expressed in decimal?

Computer Networking: A Top-Down Approach (7th Edition)
Computer Networking: A Top-Down Approach (7th Edition)
7th Edition
ISBN:9780133594140
Author:James Kurose, Keith Ross
Publisher:James Kurose, Keith Ross
Chapter1: Computer Networks And The Internet
Section: Chapter Questions
Problem R1RQ: What is the difference between a host and an end system? List several different types of end...
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1.5 1 0.5 -0.5 -1 -1.5 -2 10 15 25 30 in Recall that for a discrete-time sinusoid, the normalized frequency, f, is the ratio of the number of cycles over the number of samples. In the plot above, what is the normalized frequency expressed in decimal? Answer: Check 0.2 Consider a linear time invariant channel with amplitude response S(f) = V1.64–1.6cos(2rf) Suppose that the channel input has the form x(n) 4.9cos(2r0.1n) for all n from -0o to +0. The channel output can be written as y(n) = Acos(2r0.1n + 4) where –T < ¢ < x. What is the numerical value of A? Please provide your answer at least 3 significant figures. Hint: Determine first the amplitude response at the frequency of the input signal x(n). Also, please check the settings in your calculator. If the setting is degrees, use 180 for t; if radians then use pi button (or 3.1416). Answer: 20 5 LO
Transcribed Image Text:1.5 1 0.5 -0.5 -1 -1.5 -2 10 15 25 30 in Recall that for a discrete-time sinusoid, the normalized frequency, f, is the ratio of the number of cycles over the number of samples. In the plot above, what is the normalized frequency expressed in decimal? Answer: Check 0.2 Consider a linear time invariant channel with amplitude response S(f) = V1.64–1.6cos(2rf) Suppose that the channel input has the form x(n) 4.9cos(2r0.1n) for all n from -0o to +0. The channel output can be written as y(n) = Acos(2r0.1n + 4) where –T < ¢ < x. What is the numerical value of A? Please provide your answer at least 3 significant figures. Hint: Determine first the amplitude response at the frequency of the input signal x(n). Also, please check the settings in your calculator. If the setting is degrees, use 180 for t; if radians then use pi button (or 3.1416). Answer: 20 5 LO
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