Engineering B.E. (Information Technology) Sem 3 December 2022 2022 Principle Of CommunicationDSE Question Paper - Mumbai University | munotes

Questions asked in this paper

1. Q1 Question No.1 is Compulsory
2. Q2 From Remaining 5 Questions You are Required to Solve any 3 Questions
3. Q3 Assume the data if Necessary 1 Attempt Any Four: - 20
   • a) Draw Block Diagram of Analog Communication System and list its Applications
   • b) Explain image frequency in super heterodyne receiver
   • c) Define Fourier Transform with its properties-time and frequency shifting
   • d) Differentiate Between Amplitude Modulation and Frequency Modulation
   • e) Explain Need of modulation in communication 2 Attempt the Following: 20
   • a) Explain in detail different Types of Noise with example
   • b) Draw and explain Electromagnetic Spectrum with its Application 3 Attempt the Following: 20
   • a) Draw block diagram of Super heterodyne receiver & explain its characteristics Sensitivity, Selectivity, Fidelity and double spotting
   • b) Explain block diagram and waveforms of Armstrong method 4 Attempt the Following: 20
   • a) Draw and explain in detail FM demodulator: Foster Seeley discriminator
   • b) State and Explain Friss formula and define Equivalent noise temperature 5 Attempt the Following: 20
   • a) Explain in detail Principle of FM with waveforms, spectrum and bandwidth
   • b) Derive expression of AM wave with necessary sketch 6 Attempt the Following (any four) 20
   • a) Compare Analog Communication system and Digital Communication System
   • b) Explain Generation of SSB using Phase Shift Method
   • c) What are the different Types of Communication channels, explain with
   • d) Discuss Signal to noise ratio, unit step, delta and gate function of Fourier
   • e) Compare Pre- emphasis and de-emphasis in FM generation
   • f) Draw AM Transmitter and AM Receiver Block diagrams

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