Problem 6-6 Consider the 5 spectrograms shown on the following page. Match each spectrogram to one of the equa- tions below. For each match you make provide a short justification. Answers without justifications will be assumed to be guesses and receive no credit. Choices: ⚫1(t) = cos(2π(250)² + 2(1000)t) . . . . . 12(t) = cos(2(500)² + 2(1000)t) 13(t) = cos(-2(250)² + 2(4000)t) 24(t) = cos(-2π(500)² + 2(4000)t) 15(t)= cos(200 sin(2x) + 2(3000)t) 6(t) = cos(1000 sin(2x) + 2(3000)t) 27(t) = cos(200 sin(2*(5)t) + 2(3000)t) s(t) = cos(200 sin(2x(5)t) + 2(1000)£) 9(t) = cos(2(2000)t) + cos(2 (4000)t) 10(t) = cos(2(1000)t) cos(2 (2000)t) 11(t) (1+cos(2π(1000))) cos(2 (3000)t) 12(t) = (1+cos(2 (2000))) cos(2 (2000)£) None of the above Frequency (Hz) 5000 4500 4000 3500 .3000 2500 2000 1500 1000 500 Spectrogram a 5000 4500 4000 3500 3000- 0.5 1 1.5 2 2.5 3 3.5 Time (s) Spectrogram b 2500 2000 1500 1000 500 0 0.5 1 1.5 2 2.5 3 3.5 4 5000 4500 4000 3500 3000 2500- 2000 1500 1000 500 0 0.5 1 5000 4500 4000 3500 3000 2500 2000 1500 1000 500 5000 4500 4000 3500 3000 2500- 2000 1500 000 Frequency (Hz) Time (s) Spectrogram c 1.5 2 2.5 3 3.5 4 Time (s) Spectrogram d 0.5 1 1.5 2 2.5 3 3.5 4 Time (s) Spectrogram e ° 0.5 1 1.5 2 2.5 3 3.5 4 Time (s)
Problem 6-6 Consider the 5 spectrograms shown on the following page. Match each spectrogram to one of the equa- tions below. For each match you make provide a short justification. Answers without justifications will be assumed to be guesses and receive no credit. Choices: ⚫1(t) = cos(2π(250)² + 2(1000)t) . . . . . 12(t) = cos(2(500)² + 2(1000)t) 13(t) = cos(-2(250)² + 2(4000)t) 24(t) = cos(-2π(500)² + 2(4000)t) 15(t)= cos(200 sin(2x) + 2(3000)t) 6(t) = cos(1000 sin(2x) + 2(3000)t) 27(t) = cos(200 sin(2*(5)t) + 2(3000)t) s(t) = cos(200 sin(2x(5)t) + 2(1000)£) 9(t) = cos(2(2000)t) + cos(2 (4000)t) 10(t) = cos(2(1000)t) cos(2 (2000)t) 11(t) (1+cos(2π(1000))) cos(2 (3000)t) 12(t) = (1+cos(2 (2000))) cos(2 (2000)£) None of the above Frequency (Hz) 5000 4500 4000 3500 .3000 2500 2000 1500 1000 500 Spectrogram a 5000 4500 4000 3500 3000- 0.5 1 1.5 2 2.5 3 3.5 Time (s) Spectrogram b 2500 2000 1500 1000 500 0 0.5 1 1.5 2 2.5 3 3.5 4 5000 4500 4000 3500 3000 2500- 2000 1500 1000 500 0 0.5 1 5000 4500 4000 3500 3000 2500 2000 1500 1000 500 5000 4500 4000 3500 3000 2500- 2000 1500 000 Frequency (Hz) Time (s) Spectrogram c 1.5 2 2.5 3 3.5 4 Time (s) Spectrogram d 0.5 1 1.5 2 2.5 3 3.5 4 Time (s) Spectrogram e ° 0.5 1 1.5 2 2.5 3 3.5 4 Time (s)
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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I need help with this problem and an explanation of the solution for the image described below. (Introduction to Signals and Systems)
Transcribed Image Text:Problem 6-6
Consider the 5 spectrograms shown on the following page. Match each spectrogram to one of the equa-
tions below. For each match you make provide a short justification. Answers without justifications
will be assumed to be guesses and receive no credit.
Choices:
⚫1(t) = cos(2π(250)² + 2(1000)t)
.
.
.
.
.
12(t) = cos(2(500)² + 2(1000)t)
13(t) = cos(-2(250)² + 2(4000)t)
24(t) = cos(-2π(500)² + 2(4000)t)
15(t)= cos(200 sin(2x) + 2(3000)t)
6(t) = cos(1000 sin(2x) + 2(3000)t)
27(t) = cos(200 sin(2*(5)t) + 2(3000)t)
s(t) = cos(200 sin(2x(5)t) + 2(1000)£)
9(t) = cos(2(2000)t) + cos(2 (4000)t)
10(t) = cos(2(1000)t) cos(2 (2000)t)
11(t)
(1+cos(2π(1000))) cos(2 (3000)t)
12(t) = (1+cos(2 (2000))) cos(2 (2000)£)
None of the above
Transcribed Image Text:Frequency (Hz)
5000
4500
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3500
.3000
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Spectrogram a
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3
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Spectrogram b
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3
3.5 4
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0
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Frequency (Hz)
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Spectrogram c
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Time (s)
Spectrogram d
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Spectrogram e
°
0.5 1
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