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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 3 of 9

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Q21.
Examples of double side band signals are

a.

ASK

b.

PSK

c.

ASK & PSK

d.

None of the mentioned

Discuss
Answer: (c).ASK & PSK
Q22.
The likelihood ratio test is done between

a.

Likelihood of s1 by likelihood of s2

b.

Likelihood of s2 by likelihood of s1

c.

Likelihood of s1 by likelihood of s1

d.

None of the mentioned

Discuss
Answer: (a).Likelihood of s1 by likelihood of s2
Q23.
According to the rule of minimizing the error probabilities, the hypothesis should be like if the priori probabilities are ________ than the ratio of likelihoods.

a.

Lesser

b.

Greater

c.

Equal

d.

None of the mentioned

Discuss
Answer: (a).Lesser
Q24.
The detector that minimizes the error probability is called as

a.

Maximum likelihood detector

b.

Minimum likelihood detector

c.

Maximum & Minimum likelihood detector

d.

None of the mentioned

Discuss
Answer: (a).Maximum likelihood detector
Q25.
For a M-ary signal or symbol the number of likelihood functions are

a.

M

b.

M+1

c.

M-1

d.

2M

Discuss
Answer: (a).M
Q26.
An error in binary decision making occurs when the channel noise is

a.

Greater than the optimum threshold level

b.

Lesser than the optimum threshold level

c.

Greater or Lesser than the optimum threshold level

d.

None of the mentioned

Discuss
Answer: (c).Greater or Lesser than the optimum threshold level
Q27.
Optimum threshold value is given by

a.

a0+a1/2

b.

a0-a1/2

c.

a0/2

d.

a1/2

Discuss
Answer: (a).a0+a1/2
Q28.
The symbol of the probability under the tail of Gaussian pdf is called as

a.

Complementary error function

b.

Co error function

c.

Complementary error & Co error function

d.

None of the mentioned

Discuss
Answer: (c).Complementary error & Co error function
Q29.
Matched filter provides _____ signal to noise ratio.

a.

Maximum

b.

Minimum

c.

Zero

d.

Infinity

Discuss
Answer: (a).Maximum
Q30.
The impulse response of the filter is the ________ of the mirror image of the signal waveform.

a.

Delayed version

b.

Same version

c.

Delayed & Same version

d.

None of the mentioned

Discuss
Answer: (a).Delayed version
Page 3 of 9

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