EC8395 Question Bank Communication Engineering
EC8395 Question Bank Communication Engineering Regulation 2017 Anna University free download. Communication Engineering Question Bank EC8395 pdf free download.
Sample EC8395 Question Bank Communication Engineering:
1.Discover the need modulation in communication systems?
BTL 3
Applying
2.List the types of AM modulators.
BTL 1
Remembering
3.Describe AM modulated wave for modulation index=0.5 and its spectra.
BTL 2
Understanding
4.Can you formulate the theory for modulation index of an AM signal and write its classification.
BTL 6
Creating
5.When a signal m(t)=3cos(2????x103t) modulates a carrier c(t)=5cos(πx106t), assess the modulation index and transmission bandwidth if the modulation is AM.
BTL 5
Evaluating
6.Summarize the methods for generating SSB-SC signal.
BTL 2
Understanding
7.Define Coherent Detection.
BTL 1
Remembering
8.A carrier is amplitude modulated to a depth of 80%.evaluate the total power in the modulated wave, if the carrier is 10 watts.
BTL 5
Evaluating
9.Develop a modulation scheme for broadcast video transmission.
BTL 6
Creating
10.Compare AM with DSB-SC and SSB-SC.
BTL 4
Analysing
11.Examine heterodyning principle.
BTL 1
Remembering
12.Define modulation index of frequency modulation and phase modulation.
1.(i)Describe the concepts of AM modulation and derive the equation of an AM wave. (8)
(ii)Draw the phasor diagram, spectrum and modulated AM wave for various degrees of modulation index. (5)
BTL 1
Remembering
2.DefineAmplitude modulation and explain its generation and detection with the help of mathematical expressions? (13)
BTL 1
Remembering
3.Tellhow the outputs of two amplitude modulators are combined to produce a double-sideband suppressed-carrier output? (13)
BTL 1
Remembering
4.(i)Examine the function of coherent detection and squaring
synchronizer with block diagram. (10)
(ii)Identify the value of modulated index if the total
transmitted power is 150W and carrier power is 100W
in AM.
5.(i)Discuss the concepts of SSB Modulation using filter
method. (5)
(ii)Describe a method of generating a single-sideband
signal using balanced modulators and phase shifters. (8)
BTL 2
Understanding
6.Demonstrate how baseband recovery is achieved at the receiving end of the single-sideband communications. (13)
| Subject name | Communication Engineering |
| Semester | 3 |
| Subject Code | EC8395 |
| Regulation | 2017 regulation |
EC8395 Question Bank Communication Engineering Click Here To Download
EC8395 Syllabus Communication Engineering
EC8395 Notes Communication Engineering
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