Rashtrasant Tukadoji Maharaj Nagpur University, Maharashtra, Electronics and Communication engineering Semester 4, Analog & Digital Communications Syllabus

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Unit - 1 AMPLITUDE MODULATION

Unit 1

Amplitude Modulation

1.1 Need for modulation

1.2 Amplitude Modulation AM

1.3 DSBSC

1.4 SSB

1.5 VSB

1.6 ISB transmissions

1.7 AM Generation Generation of DSBFC

1.8 Plate Modulated ClassC Amplifier

1.9 Concept of Angle modulation

1.10 Types of Angle Modulation frequency spectrum

1.11 Narrow band wide band FM

1.12 Modulation index

1.13 Bandwidth

1.14 Phase Modulation

1.15 Generation of FM Direct Indirect Method

1.16 Comparison of FM and PM

1.17 Preemphasis and Deemphasis

Unit - 2 AM & FM RECEIVERS

Unit 2

AM FM Receivers

2.1 AM Detection Demodulation of DSBFC

2.2 Square Law Detector

2.3 Envelope Detector

2.4 Demodulation of DSBSC Synchronous Detector

2.5 Demodulation of SSBSC

2.6 FM Receivers

2.7 Superheterodyne Receiver Block Diagram

2.8 Performance Characteristics – Sensitivity

2.9 Selectivity

2.10 Fidelity

2.11 Foster Seeley FM Discriminator

2.12 Types of Noises

2.13 Signal to Noise Ratio

2.14 Noise Figure

Unit - 3 DIGITAL COMMUNICATION

Unit 3

Digital Communication

3.1 Sampling theorem

3.2 Nyquist criteria

3.3 Types of sampling ideal natural flat top

3.4 Aliasing Aperture effect

3.5 Pulse Analog modulation PAM PWM PPM

3.6 PCM – Generation reconstruction

3.7 Bandwidth requirement of PCM

3.8 Differential PCM

3.9 Delta Modulation Adaptive DM

3.10 Companding in PCM

Unit - 4 DIGITAL MODULATION TECHNIQUES

Unit 4

Digital Modulation Techniques

4.1 Introduction to Digital Modulation Techniques ASK

4.2 PSK

4.3 FSK

4.4 QPSK

4.5 MSK

4.6 DPSK

4.7 OFDM

4.8 Introduction to information theory

4.9 Channel capacity

4.10 Huffman

4.11 Prefix code

4.12 LZ encoding algorithm

4.13 Rate distortion theory for optimum quantization

4.14 Scalar and vector quantization

Unit - 5 REVIEW OF CHANNEL CODING AND SPREAD SPECTRUM

Unit 5

Review of channel coding and spread spectrum

5.1 Linear block codes

5.2 Cyclic codes

5.3 Convolution Encoding and decoding

5.4 Viterbi algorithm

5.5 Fano algorithm

5.6 Trellis coded modulation methods

5.7 Study of PN sequences

5.8 Direct sequence methods

5.9 Slow and fast Frequency hop methods

5.10 Application of spread spectrum

5.11 CDMA

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Other Subjects of Semester-2
Analog system design
Data structure & algorithm
Microcontrollers & applications
Programming for problem solving
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