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Digital Communication - EC6501

Digital Communication

SAMPLING and QUANTIZATION


-:- Sampling theorem for Low pass signals
-:- Aliasing and signal reconstruction
-:- Quantization
-:- Types of Quantizers: Uniform and Non uniform quantization
-:- Quantization Noise and Signal-to-Noise
-:- Companding of Speech signal
-:- Advantages of Non Uniform Quantization
-:- Pulse code Modulation(PCM)
-:- Time-Division Multiplexing (TDM)
-:- Important Short Questions and Answers: Sampling & Quantization

WAVEFORM CODING


-:- Linear Predictive Coding
-:- Differential Pulse Code Modulation (DPCM)
-:- Delta Modulation (DM)
-:- Adaptive Delta Modulation
-:- Important Short Questions and Answers: Waveform Coding

BASEBAND TRANSMISSION


-:- Properties of Line Codes
-:- Power spectral density of unipolar NRZ line code
-:- Manchester encoding
-:- Nyquist Criterion for Zero-ISI
-:- Inter symbol Interference
-:- Eye Pattern
-:- Equalising Filter
-:- Important Short Questions and Answers: Baseband Transmission

DIGITAL MODULATION SCHEME


-:- Geometric representation of Signals
-:- Generation and Coherent Detection of BPSK Signals
-:- Power Spectrum or BPSK Modulated Signal
-:- Frequency Shit Keying Modulation
-:- Quadrature Phase Shift Keying (QPSK)
-:- QAM(Quadrature Amplitude Modulation)
-:- Important Short Questions and Answers: Digital Modulation Scheme

ERROR CONTROL CODING


-:- Linear block and Hamming codes
-:- Convolutional codes
-:- Vitterbi Decoding Algorithm
-:- Important Short Questions and Answers: Error Control Coding
Mahendra Varman Mahendra Varman Mahendra Varman Mahendra Varman Mahendra Varman

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