January 17, 2024

Category: Communication-2

Communication-2

2071 Chaitra(Q).Explain E1 digital hierarchy as related to the telephony system. Evaluate the expression of SQNR in a uniform quantized PCM system :

Rambinayby Rambinay0

E1 digital hierarchy as related to telephony system: Vf band frequency: 4 kHz (300Hz-3400Hz) Sampling frequency: 8kHz Sampling rate = 8000 cycles per second i.e …

2071 Chaitra(Q).Explain E1 digital hierarchy as related to the telephony system. Evaluate the expression of SQNR in a uniform quantized PCM system : Read More
Communication-2

2071 Chaitra(Q) State Nyquist Sampling theorem. Determine the Nyquist rate and Nyquist interval for a continuous-time signal x(t)=6cos50πt+20sin300πt-10cos100πt is to be sampled and quantized using 512 levels.

Rambinayby Rambinay1

The Statement of Nyquist Sampling theorem given below : “A continuous-time signal may be completely represented in its samples and recovered back if the sampling …

2071 Chaitra(Q) State Nyquist Sampling theorem. Determine the Nyquist rate and Nyquist interval for a continuous-time signal x(t)=6cos50πt+20sin300πt-10cos100πt is to be sampled and quantized using 512 levels. Read More
Communication-2

2071 Chaitra (Q) Explain the importance of source coding in digital communication systems. A discrete memoryless source emits four symbols with probabilities p= {0.125,0.125,0.25,0.5}. If the output symbols are encoded using Shannon Fano Code, Find the coding Efficiency and Compare the coding efficiency with that of BCD code.

Rambinayby Rambinay11

Source coding is the process of conversion of the output of the DMS into a sequence of the binary symbol (BCD). It helps in the …

2071 Chaitra (Q) Explain the importance of source coding in digital communication systems. A discrete memoryless source emits four symbols with probabilities p= {0.125,0.125,0.25,0.5}. If the output symbols are encoded using Shannon Fano Code, Find the coding Efficiency and Compare the coding efficiency with that of BCD code. Read More