Digital Communications

DCS VS ACS  Block Diagram of Digital Communication System  Pulse Code Modulation SNR in PCMDelta Modulation & Demodulation  errors in Delta Modulation  Adaptive Delta Modulation condition to avoid slope overload error in Delta Modulation   SQR in Delta Modulation    u-law and A-law DPCM   Inter Symbol Interference and Eye pattern Non-Uniform Quantization in PCM   


Base band Vs Pass band Transmission   Amplitude Shift keying(ASK)   Phase Shift Keying (PSK)              Frequency Shift Keying (FSK)   QPSK Transmitter and Receiver 



Probability of error of coherent ASK  Probability of error of coherent PSK

  Probability of error in QPSK    QPSK equation and signal space diagram DPSK Transmitter and Receiver 

Correlation Receiver Matched Filter  PN Sequences   optimum filter   


Properties of Mutual Information  

Burst and random error correcting codes   


DC Unit-4 FAQ  DC Quiz   DC slip test questions   DC Tutorial questions DC Short answer questions with answers





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