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Welcome to the Baseband Demodulation and Detection MCQs Page

Dive deep into the fascinating world of Baseband Demodulation and Detection with our comprehensive set of Multiple-Choice Questions (MCQs). This page is dedicated to exploring the fundamental concepts and intricacies of Baseband Demodulation and Detection, a crucial aspect of Digital Communication. In this section, you will encounter a diverse range of MCQs that cover various aspects of Baseband Demodulation and Detection, from the basic principles to advanced topics. Each question is thoughtfully crafted to challenge your knowledge and deepen your understanding of this critical subcategory within Digital Communication.

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Check out the MCQs below to embark on an enriching journey through Baseband Demodulation and Detection. Test your knowledge, expand your horizons, and solidify your grasp on this vital area of Digital Communication.

Note: Each MCQ comes with multiple answer choices. Select the most appropriate option and test your understanding of Baseband Demodulation and Detection. You can click on an option to test your knowledge before viewing the solution for a MCQ. Happy learning!

Baseband Demodulation and Detection MCQs | Page 8 of 9

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Q71.
In differential PSK the date is

a.

Encoded differentially

b.

Decoded differentially

c.

Encoded & Decoded differentially

d.

None of the mentioned

Discuss
Answer: (a).Encoded differentially
Q72.
Envelope detector consists of

a.

Rectifier and high pass filter

b.

Rectifier and low pass filter

c.

Amplifier and low pass filter

d.

Amplifier and high pass filter

Discuss
Answer: (b).Rectifier and low pass filter
Q73.
The minimum required spacing is the difference between the

a.

Center of the spectral main lobe and first zero crossing

b.

First and second zero crossing

c.

First and last zero crossing

d.

None of the mentioned

Discuss
Answer: (a).Center of the spectral main lobe and first zero crossing
Q74.
The minimum tone separation corresponds to

a.

T

b.

1/T

c.

2T

d.

T/2

Discuss
Answer: (b).1/T
Q75.
Matched filter is used for

a.

Coherent detection

b.

Non coherent detection

c.

Coherent & Non coherent detection

d.

None of the mentioned

Discuss
Answer: (a).Coherent detection
Q76.
In differential encoding the _________ different between two wave forms is measured.

a.

Magnitude

b.

Frequency

c.

Phase

d.

Time period

Discuss
Answer: (c).Phase
Q77.
The error probability of DPSK is ________ worse than PSK.

a.

Twice

b.

3 db

c.

Twice (3db)

d.

None of the mentioned

Discuss
Answer: (c).Twice (3db)
Q78.
The limit which represents the threshold Eb/N0 value below which reliable communication cannot be maintained is called as

a.

Probability limit

b.

Error limit

c.

Shannon limit

d.

Communication limit

Discuss
Answer: (c).Shannon limit
Q79.
M-ary signalling produces _______ error performance with orthogonal signalling and _______ error performance with multiple phase signalling.

a.

Degraded, improved

b.

Improved, degraded

c.

Improved, improved

d.

Degraded, degraded

Discuss
Answer: (b).Improved, degraded
Q80.
Which is more vulnerable to noise?

a.

2-ary system

b.

4-ary system

c.

Binary system

d.

None of the mentioned

Discuss
Answer: (b).4-ary system
Page 8 of 9

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