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Module-I (8 Hours) Sampling Theorem, Low Pass Signal, Band Pass Signal, Signal
Reconstruction, Practical Difficulties, The Treachery of Aliasing, The Anti-aliasing Filter,
Application of Sampling Theorem, PAM, PWM and PPM Signal Generation and
Module-II (12 Hours) Pulse Code Modulation: Quantization of Signals, Uniform and
Non-Uniform Quantization, The Compander, The encoder, Transmission Bandwidth and
output SNR, Digital multiplexer, Synchronizing and Signaling, Differential PCM, Delta
Modulation, Adaptive Delta Modulation, Output SNR, Comparison with PCM. Noise in
PCM and DM: Calculation of Quantization Noise Power, Output Signal Power, and the
Thermal Noise Power, Output SNR of PCM using different modulation techniques.
Output SNR of DM.
Module-III (12 Hours) Principles of Digital Data Transmission: A Digital
Communication System, Line Coding-Various line codes, Polar Signaling, ON-OFF
Signaling, Bipolar Signaling, Pulse Shaping: Nyquist Criterion for zero ISI, Scrambling,
Regenerative Repeater- Preamplifier, Equalizer, Eye diagram, Timing Extraction, Timing
Jitter, A Base-band Signal Receiver, Peak Signal to RMS Noise output voltage ratio, The
Optimum Filter, White Noise, The Matched Filter- Probability of Error of the Matched
Filter, Coherent Reception.
Module-IV (10 Hours) Digital Modulation Technique: Generation, Transmission,
Reception, Spectrum and Geometrical Representation in the signal space of BPSK, BFSK,
Differentially- Encoded PSK, QPSK, Minimum Shifting Keying (MSK), M-ary PSK, M-ary
FSK, Use of Signal Space to calculate probability of Error for BPSK and BFSK.
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