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Define phase rule and explain terms like phase, component and degree of freedom by giving appropriate examples.
digital communication updated 3.0 years ago by teamques10 ★ 65k
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910
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Explain briefly the different pulse modulation techniques.
digital communication updated 3.0 years ago by teamques10 ★ 65k
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Effect of Doppler spread on fast fading and slow fading
digital communication updated 3.0 years ago by teamques10 ★ 65k
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Determine the symbol rate of transmission and the bandwidth requirement of the communications channel for i) 8-ary PSK system ii) 16-ary PSK system
digital communication updated 2.4 years ago by Krishna_Agrawal • 2.7k
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Draw Encoder diagram, trellis diagram, using trellis find code vector if message vector is (101100).
digital communication updated 2.2 years ago by sagarkolekar ★ 11k
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2.8k
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Prove that syndrome depends on error patterns and not on transmitted code word
digital communication updated 2.2 years ago by sagarkolekar ★ 11k
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969
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For a Quadrature Phase Shift Keying (QPSK), Explain the modulator, demodulator, Bandwidth and advantages.
digital communication updated 2.2 years ago by sagarkolekar ★ 11k
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792
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Compare systematic and non-systematic codes.
digital communication updated 2.2 years ago by sagarkolekar ★ 11k
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862
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Derive the expression for entropy? When Is entropy maximum?
digital communication updated 2.2 years ago by sagarkolekar ★ 11k
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1.7k
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Define code rate, code efficiency, systematic and non-systematic in the context of linear block code.
digital communication updated 2.2 years ago by sagarkolekar ★ 11k
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Compare offset QPSK and non-offset QPSK.
digital communication updated 2.1 years ago by sagarkolekar ★ 11k
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2.5k
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Justify that the probability of error in matched filter does not depend on the shape of input signal. Derive the relevant expression.
digital communication updated 2.1 years ago by sagarkolekar ★ 11k
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659
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Describe the methodology used for estimating the run length of stochastic simulation?
digital communication updated 6.5 years ago by praveen9511 • 0
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Encode the source using Huffman algorithm. Find the average code length and efficiency
digital communication updated 2.2 years ago by sagarkolekar ★ 11k
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A generator matrix of (6,3) linear block code is given by
digital communication updated 2.2 years ago by sagarkolekar ★ 11k
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1.7k
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Describe in convolution code, time domain approach, and Transform domain approach to determine encoder output.
digital communication updated 2.2 years ago by sagarkolekar ★ 11k
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737
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Design an encoder for systematic code generation and explain its working.
digital communication updated 2.2 years ago by sagarkolekar ★ 11k
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1.9k
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Draw the syndrome calculator and explain how received message is corrected?
digital communication updated 2.2 years ago by sagarkolekar ★ 11k
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Draw the state diagram and Tree diagram
digital communication updated 2.2 years ago by sagarkolekar ★ 11k
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1.2k
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Explain the coherent and non-coherent digital modulation techniques.
digital communication updated 2.2 years ago by sagarkolekar ★ 11k
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803
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Describe coherent method of binary FSK signals. Also draw power spectra for BFSK modulated signal.
digital communication updated 2.2 years ago by sagarkolekar ★ 11k
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772
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10. State and explain the condition for orthogonality of the BFSK signal determine its spectrum and hence bandwidth requirement for transmission of signal.
digital communication updated 2.2 years ago by sagarkolekar ★ 11k
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1.3k
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Explain in detail 16-QAM transmitter and receiver system. Draw and explain signal constellation diagram for 16-QAM.
digital communication updated 2.2 years ago by sagarkolekar ★ 11k
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1.5k
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Write short note on Intersymbol interference (ISI) and Eye diagram.
digital communication updated 2.2 years ago by sagarkolekar ★ 11k
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653
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Explain Line codes.
digital communication principles of communication network updated 2.3 years ago by pedsangini276 • 4.8k
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