# Analog Communication Systems

13.98\$

Analog Communication Systems covers basics of Communication Systems. We cover Modulation and Demodulation Concepts and their requirement in day-to-day activities. We also learn the three types of Modulation in detail. Towards the middle, we study Pulse and Digital Modulation. We also study about Noise, Signal to Noise Ratio and related concepts.

What will you learn?

The complete online syllabus of this course comprises 4 Learning Modules | 143 Topics of Learning | 7.2 Hours of Learning | 29 Assessments

Module

• Introduction: Signal and Spectra
• Amplitude and Angle Modulation
• Pulse and Digital Modulation and PLL
• PAM and AM-FM Receivers and Transmitters

Topics of Learning

• Block Diagram Representation of an Electronic Communication System
• Analog vs. Digital Communication
• Modulation and Multiplexing
• Transmission Media
• Frequency Spectrum and Filtering
• Signal to Noise Ratio, Bandwidth, Channel Capacity and Coding
• Signal Energy and Power
• Classification of Signal
• Shifting, Inversion, Scaling and Convolution of a Signal
• Correlation and Autocorrelation
• Understanding Distortion due to Band limiting through Fourier Transform
• Autocorrelation
• Cumulative Distribution Function, Probability Density Function
• Development of an Optimal Receiver
• Autocorrelation and Power Spectral Density of Random Processes
• Classification of Random Processes
• Need for Frequency Translation
• Double Side Band – Suppressed Carrier (DSB-SC) Modulation
• DSB-SC Modulator, Recovery of the Baseband Signal
• DSB-C Modulator
• DSB-C Demodulator
• Maximum allowable Modulation for Rectifier Detection and Spectrum Efficiency
• SSB
• SSB Modulator
• SSB Demodulator
• Vestigial Side Band (VSB) Modulation
• Frequency Division Multiplexing and Amplitude Modulation and Linearity
• Angle, Phase and Frequency Modulation
• Relationship between Phase and Frequency Modulation
• Some Features of Bessel Coefficient
• Bandwidth of a Tone Modulated FM Signal and Effect of the Modulation index on Bandwidth
• Spectrum of ‘Constant Bandwidth’ FM and Phasor diagram for FM Signals
• Spectrum of Narrowband Modulation and Spectrum of Wideband FM (WBFM)
• Bandwidth required for a Gaussian Modulated WBFM Signal
• FM generation by Parameter Variation Method
• FM Generation by Armstrong’s Indirect Method and its Example
• Frequency Multiplication and Application to FM
• FM Demodulator
• PM Modulator and Demodulator
• SSB-AM
• SSB-FM
• Transmitted Signal
• Operation of Receiver and Interleaving and Effects of Pilot Carrier
• Introduction : Digital Communication System
• Sampling Theorem and Low Pass Signal
• Sampling of Bandpass Signal
• Time Division Multiplexing and Frequency Division Multiplex
• Channel Bandwidth for PAM and Natural Sampling
• Flat-Top Sampling and Signal Recovery through holding
• PPM and PWM generation
• Quantization of Signals and Quantization error
• Pulse Code Modulation (PCM)
• The PCM System
• Line Coding
• Scrambling and The T1 Digital System
• Multiplexing T1 Lines- The T2, T3 and T4 Lines
• Principle of Differential PCM
• Adaptive Linear Prediction and Delta Modulation
• Voice Model
• Channel vocoder
• Linear Predictive Coder and Multi-Pulse Excited Linear Prediction
• CELP and MELP
• Phase Shift Keying (PSK)- BPSK and DPSK
• DEPSK and QPSK
• M-ary Phase Shift Keying
• Geometrical representation of signal in QASK
• Bandwidth of a QASK Signal
• Binary Frequency Shift Keying (BFSK)
• M-ary FSK
• Minimum Shift Keying (MSK)
• Duobinary Encoding
• Comparison of Narrowband FM Systems
• Quadrature Partial Response (QPR) encoder Decoder
• PLL Characteristics
• Analog PLL and Frequency Demodulation
• Digital Phase Locked Loop
• Applications of Phase Locked Loop
• Basics of Pulse Analog Modulation
• Practical Sampling
• Analog Pulse Modulation
• Pulse Modulation System and Pulse Amplitude Modulation (PAM)
• Pulse-Time Modulation (PTM) and Pulse-Width-Modulation (PWM)
• Pulse-Position Modulation (PPM)
• Time-Division Multiplexing
• Synchronization in Pulse Modulated Systems
• Sensitivity and Selectivity
• TRF Selectivity and LIC TRF Receiver
• Description of Super heterodyne Receivers
• Tuning of Super heterodyne Receivers and Electronic Tuning
• Image Frequency and its Rejection
• RF Amplifiers
• Local Oscillator
• Intermediate Frequency and IF Amplifiers
• AM Detector
• Principle of Operation
• The complete AM Receiver system
• Arrangement for Laboratory Measurement of performance of AC Receiver
• Sensitivity
• Selectivity
• Fidelity
• Basic differences
• RF Amplifiers
• Amplitude Limiter
• FM Discriminators
• LIC FM Discriminators
• Circuit for generation of AM signals
• High Level and Low Level Transistor collector Modulator
• Vacuum Tubes and Linear Integrated Circuit (LIC) Modulator
• AM transmitter System
• Transmitter Measurements
• Single Side Band Transmission
• Single Side Band Generation
• Frequency Synthesizer
• Circuit for direct FM generation
• Direct FM Transmitter
• Indirect FM Transmitter
• Stereophonic FM Transmitter
• Standard FM Transmitter
• Some Sources of Noise
• Superposition of Noises
• Linear Filtering of Noise