Exam Details
| Subject | digital communication | |
| Paper | ||
| Exam / Course | b.e.(electronics and instrumentation engineering) | |
| Department | ||
| Organization | SETHU INSTITUTE OF TECHNOLOGY | |
| Position | ||
| Exam Date | May, 2017 | |
| City, State | tamil nadu, pulloor |
Question Paper
Reg. No.
B.E. B.Tech. DEGREE EXAMINATION, MAY 2017
Fifth Semester
Electronics and Communication Engineering
01UEC501 DIGITAL COMMUNICATION
(Regulation 2013)
Duration: Three hours Maximum: 100 Marks
Answer ALL Questions
PART A (10 x 2 20 Marks)
1. State the advantages of digital communication over analog communication.
2. Define channel. What are the types of channel.
3. State sampling theorem.
4. Differentiate the principles of temporal waveform coding and model-based coding.
5. What is inter symbol interference?
6. Give four applications of eye pattern.
7. What is ASK?
8. What are coherent and non-coherent receivers?
9. Mention any two properties of maximum-length sequences.
10. What is anti jam?
Question Paper Code: 31451
2
31451
PART B x 16 80 Marks)
11. Draw the block diagram of digital communication systems and explain each block in detail. Or Explain in detail the Gram-Schmidt orthogonalization procedure.
12. With neat block diagram explain the concept of PCM and also derive the signal to noise ratio in PCM system that uses linear quantization. Or Explain in detail about non-uniform quantization technique.
13. Derive and Explain the Nyquist first criterion to minimize ISI. Or Describe the principle of signal reception using a correlator type receiver.
14. Describe with diagrams the generation and detection of coherent binary FSK. Explain the probability of error for this scheme. Or Explain the working of a QPSK schemes with its transmitter and receiver block diagrams. 15. What is spread spectrum technique? Explain in detail about direct sequence spread spectrum techniques with necessary diagrams. Or
Explain in detail about frequency hopping spread spectrum.
B.E. B.Tech. DEGREE EXAMINATION, MAY 2017
Fifth Semester
Electronics and Communication Engineering
01UEC501 DIGITAL COMMUNICATION
(Regulation 2013)
Duration: Three hours Maximum: 100 Marks
Answer ALL Questions
PART A (10 x 2 20 Marks)
1. State the advantages of digital communication over analog communication.
2. Define channel. What are the types of channel.
3. State sampling theorem.
4. Differentiate the principles of temporal waveform coding and model-based coding.
5. What is inter symbol interference?
6. Give four applications of eye pattern.
7. What is ASK?
8. What are coherent and non-coherent receivers?
9. Mention any two properties of maximum-length sequences.
10. What is anti jam?
Question Paper Code: 31451
2
31451
PART B x 16 80 Marks)
11. Draw the block diagram of digital communication systems and explain each block in detail. Or Explain in detail the Gram-Schmidt orthogonalization procedure.
12. With neat block diagram explain the concept of PCM and also derive the signal to noise ratio in PCM system that uses linear quantization. Or Explain in detail about non-uniform quantization technique.
13. Derive and Explain the Nyquist first criterion to minimize ISI. Or Describe the principle of signal reception using a correlator type receiver.
14. Describe with diagrams the generation and detection of coherent binary FSK. Explain the probability of error for this scheme. Or Explain the working of a QPSK schemes with its transmitter and receiver block diagrams. 15. What is spread spectrum technique? Explain in detail about direct sequence spread spectrum techniques with necessary diagrams. Or
Explain in detail about frequency hopping spread spectrum.
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- analytical instruments
- antenna and wave propagation
- application of instrumentation in aerospace and navigation
- applied digital signal processing
- biomedical instrumentation
- circuit theory
- communication engineering
- computer architecture and organization
- control engineering
- data communication and networks
- data structures and algorithm analysis
- data structures and algorithms
- digital communication
- digital electronics
- digital electronics and design
- digital image processing
- digital signal processing
- electrical circuits and networks
- electrical machines
- electrical measurements
- electromagnetic fields
- electronic circuits
- electronic measurements and instrumentation
- embedded and real time systems
- environmental monitoring instruments
- environmental science and engineering
- fibre optics and laser instruments
- high speed networks
- industrial data networks
- industrial electronics
- industrial instrumentation – ii
- industrial instrumentation-i
- information theory and coding
- instrumentation for power plants
- instrumentation system design
- laser and fiber optics instrumentation
- linear control engineering
- linear integrated circuits and applications
- logic and distributed control systems
- microprocessors and interfacing
- microprocessors microcontrollers and applications
- microwave engineering
- mobile ad-hoc networks
- modern electronic instrumentation
- nano electronics
- numerical methods
- optical communication and networks
- principles of electrical machines
- probability and random processes
- process control instrumentation
- project management and finance
- qualitative and quantitative aptitude
- real time embedded systems architecture
- reliability and safety engineering
- robotics and automation
- satellite communication principles and applications
- sensors and transducers
- signals and systems
- thermodynamics and fluid mechanics
- transforms and partial differential equations
- transmission lines and waveguides
- value education and human rights
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- vlsi system design
- wireless communication systems
- wireless sensor networks