With the help of neat diagram explain the transmitter and receiver of Pulse Code Modulation
[4 marks]State and prove the sampling theorem for the low pass signal.
[3 marks]Explain companding process in PCM and state the different laws for companding
[7 marks]Derive the formula for signal to quantization noise ratio for PCM.
[7 marks]Explain Inter symbol interference in digital communication and how to achieve zero ISI.
[4 marks]Explain the working principle of 1-bit DPCM. List the problems associated with it.
[7 marks]Discuss the significance of Eye Diagram in the pulse detection technique
[3 marks]Describe frame structure of T1 system in brief
[3 marks]Explain the concept of scrambling with suitable example.
[7 marks]Discuss the effect of slope overloading in delta modulation .
[3 marks]Draw the block diagram of regenerative repeater and briefly explain the function of each block
[4 marks]List out different parameter that should be examined for the selection of the line codes? Explain each in brief .
[7 marks]Differentiate between RZ and NRZ line codes
[4 marks]Discuss the MSK modulation technique and list the merits of it
[3 marks]With the help of block diagram, waveforms and expressions explain the operation of DPSK transmitter
[7 marks]Explain Noise Figure (NF) in detail.
[3 marks]Discuss the advantages and disadvantages of MSK as compared to QPSK
[4 marks]Explain Quadrature Amplitude modulation. Compare 8-QAM with 8-PSK.
[7 marks]Differentiate between Coherent and Non Coherent detection
[4 marks]Discuss practical communication system in the light of Shannon theorem.
[7 marks]Explain central limit theorem and its significance in channel estimation.
[4 marks]Discuss and prove properties of CDF,
[7 marks]A Discrete Memory less Source Xhas four symbols x ,x ,x ,x with probabilities P(x )= 0.4, P(x )= 0.3, P(x )= 0.2, P(x )= 0.1. Calculate Entropy H(X).
[3 marks]Explain Cyclic code with suitable example.
[4 marks]List out types of random variable and explain them.
[3 marks]