IT404 Unit 4
Analog & Digital Communication

Sampling & Pulse Modulation

Unit 4 Study Material

Download detailed notes, important questions and PYQ analysis for IT404 Analog & Digital Communication Unit 4.

📊 Sampling

Converts continuous-time signals into discrete-time signals for digital processing.

📡 PCM

Pulse Code Modulation converts analog signals into digital binary form.

⚡ Delta Modulation

Encodes only the difference between successive signal samples.

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Detailed Notes

Complete notes on Sampling Theorem, PAM, TDM, PCM, Quantization, DPCM, Delta Modulation, Adaptive Delta Modulation and Multiplexing.

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Important Questions

Important RGPV questions on sampling theorem, PCM, DPCM, Delta Modulation, Quantization, Companding and TDM.

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PYQ Analysis

Previous year questions and repeated topics from Sampling and Pulse Modulation Unit 4 for quick exam revision.

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Unit 4 Topics

Sampling of Signal
Sampling Theorem
Sampling Theorem for Low Pass Signal
Sampling Theorem for Band Pass Signal
Pulse Amplitude Modulation
PAM
Time Division Multiplexing
TDM
Channel Bandwidth for PAM-TDM Signal
Instantaneous Sampling
Natural Sampling
Flat Top Sampling
Aperture Effect
Pulse Position Modulation
PPM
Pulse Duration Modulation
PDM
Digital Signal
Quantization
Quantization Error
Pulse Code Modulation
PCM
Signal to Noise Ratio
Companding
Data Rate
Baud Rate
Bit Rate
Multiplexed PCM Signal
Differential PCM
DPCM
Delta Modulation
DM
Adaptive Delta Modulation
ADM
Comparison of Various Systems