PBER(e) 8:41 ECE3614 Fall 2024 Exam T... 9 FIGURE 6.8 Bit error rate performance for M-ary signaling. 1.0E-1 1.0E-2 M = 2 1.0E-3 1.0E-4 1.0E-5 1.0E-6 1.0E-7 M=4 M=8 M = 16 1.0E-8 0 10 15 20 25 (dB) 10 4 Dashboard Calendar To Do Notifications Inbox 40 1) (2pts) If you know you have a bad clock (lots of jitter) and you are not bandwidth constrained, you should: (Circle the correct answer) a) Set the roll off factor to zero b) Set the roll off factor to ½ c) Set the roll off factor to one 2) (2pts) Short answer: Why do we use M-ary modulation? 3) (4 pts) Short answer: The application engineer comes to your desk and says that the error rate is too high and must be reduced for the application to function correctly. The system is battery operated. What do you tell them is the trade- off?
PBER(e) 8:41 ECE3614 Fall 2024 Exam T... 9 FIGURE 6.8 Bit error rate performance for M-ary signaling. 1.0E-1 1.0E-2 M = 2 1.0E-3 1.0E-4 1.0E-5 1.0E-6 1.0E-7 M=4 M=8 M = 16 1.0E-8 0 10 15 20 25 (dB) 10 4 Dashboard Calendar To Do Notifications Inbox 40 1) (2pts) If you know you have a bad clock (lots of jitter) and you are not bandwidth constrained, you should: (Circle the correct answer) a) Set the roll off factor to zero b) Set the roll off factor to ½ c) Set the roll off factor to one 2) (2pts) Short answer: Why do we use M-ary modulation? 3) (4 pts) Short answer: The application engineer comes to your desk and says that the error rate is too high and must be reduced for the application to function correctly. The system is battery operated. What do you tell them is the trade- off?
Electricity for Refrigeration, Heating, and Air Conditioning (MindTap Course List)
10th Edition
ISBN:9781337399128
Author:Russell E. Smith
Publisher:Russell E. Smith
Chapter17: Commercial And Industrial Air-conditioning Control Systems
Section: Chapter Questions
Problem 25RQ
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Transcribed Image Text:PBER(e)
8:41
ECE3614 Fall 2024 Exam T...
9
FIGURE 6.8 Bit error rate performance for M-ary signaling.
1.0E-1
1.0E-2
M = 2
1.0E-3
1.0E-4
1.0E-5
1.0E-6
1.0E-7
M=4
M=8
M = 16
1.0E-8
0
10
15
20
25
(dB)
10
4
Dashboard
Calendar
To Do
Notifications
Inbox
40
Transcribed Image Text:1) (2pts) If you know you have a bad clock (lots of jitter) and you are not bandwidth
constrained, you should: (Circle the correct answer)
a) Set the roll off factor to zero
b) Set the roll off factor to ½
c) Set the roll off factor to one
2) (2pts) Short answer: Why do we use M-ary modulation?
3) (4 pts) Short answer: The application engineer comes to your desk and says that
the error rate is too high and must be reduced for the application to function
correctly. The system is battery operated. What do you tell them is the trade-
off?
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