Dear students, if you are a student of Polytechnic Second Year Fourth Semester and you want to know what are the units in Principles of Communication Engineering, then you have reached the right place. In today’s post, we read detail about the Principles of Communication Engineering which is approved by BTEUP and this is the Principles of Communication Engineering new syllabus.
So let’s start the post and read about Principles of Communication Engineering detailed syllabus.
DETAILED CONTENTS OF POLYTECHNIC FOURTH SEMESTER PRINCIPLES OF COMMUNICATION ENGINEERING FOR ELECTRICAL & ELECTRONICS ENGINEERING
1.) Introduction
1.1) Need for modulation, modulation and demodulation in communication systems.
1.2) Basic scheme of a communication system.
2.) Amplitude Modulation
2.1) Derivative of expression for an amplitude modulated wave. Carrier and side band components. Modulation index. Spectrum and BW of AM Wave, Relative power distribution in carrier and side bands.
2.2) Elementary idea of DSB-SC, SSB-SC, SSB and VSB modulations, their comparison, and areas of applications.
3.) Frequency Modulation
3.1) Expression for frequency modulated wave and its frequency spectrum (without Proof and analysis of Bassel function) Modulation index, maximum frequency deviation and deviation ratio, BW of FM signals, Carson’s rule.
3.2) Effect of noise on FM carrier. Noise triangle, Role of limiter, Need for pre-emphasis and de-emphasis, capture effect.
3.3) Comparison of FM and AM in communication systems.
4.) Phase Modulation
4.1) Derivation of expression for phase modulated wave, modulation index, comparison with frequency modulation.
5.) Principles of AM Modulators
Circuit Diagram and working operation of:
a) Collector and Base Modulator
b) Square Low Modulator
c) Balanced Modulator
6.) Principles of FM Modulators
6.1) Working principles and applications of reactance modulator, varactor diode modulator, VCO and Armstrong phase modulator.
6.2) Stabilization of carrier using AFC (Block diagram approach).
7.) Demodulation of AM Waves
7.1) Principles of demodulation of AM wave using diode detector circuit
8.) Demodulation of FM Waves
8.1) Basic principles of FM detection using slope detector.
8.2) Principle of working of the following FM demodulators
- Foster-Seeley discriminator
- Radio detector
- Block diagram of Phase locked Loop (PLL) FM demodulators (No Derivation)
9.) Pulse Modulation
9.1) Basic concepts of time division multiplexing (TDM) and frequency division multiplexing (FDM).
9.2) Pulse Amplitude Modulation (PAM), Pulse Position Modulation (PPM), Pulse Width Modulation (PWM).
10.) Pulse Code Modulation
10.1) Basic concept of sampling theorem, quantization, coding and Shanon’s theorem.
10.2) Types of PCM system and its application (Basic idea only)
10.3) Digital modulation techniques. (ASK, FSK, PSK, DPSK (Brief idea only)).
11.) Radio Transmitter
11.1) Classification of transmitters on the basis of power, frequency and modulation.
11.2) Block diagram of an AM transmitters and working of each stage. Low level and High level modulation.
11.3) Block diagram and working principle of reactance tube and Armstrong FM transmitters.
12.) Radio Receiver
12.1) Brief description of crystal and TRF radio receivers; Need for and principles of super heterodyne radio receiver.
12.2) Block diagram of super- heterodyne AM receiver, function of each block and typical waveforms at the input and output of each block.
12.3) Block diagram of an FM receiver, function of each block and wave/forms at input and output at different blocks.
LEARNING OUTCOMES
After studying Principles of Communication Engineering subject, students will able to:
- Explain the concept and need of modulation and demodulation.
- Measure the modulation index of the Amplitude Modulated wave and frequency deviation of FM.
- Use different types of modulators and demodulators.
- Obtain modulating signal from an AM Detector Circuit and FM detector.
- Use different types of Pulse Modulation Techniques (PAM, PPM, PWM and PCM).
- Classify different radio transmitters and radio receivers.
LIST OF PRACTICALS
1.) a) To observe an AM wave on CRO produced by a standard signal generator using internal and external modulation.
b) To measure the modulation index if the wave obtained in above practical.
2.) a) To obtain an AM wave from a square law modulator circuit and observe waveforms.
b) To measure the modulation index of the obtained wave form.
3.) To obtain an FM wave and measure the frequency deviation for different modulating signals.
4.) To obtain modulating signal from FM detector.
5.) To observe the sampled signal and compare it with the analog input signal. Note the effect of varying the sampling pulse width and frequency on the sampled output.
6.)To observe and note the pulse amplitude modulated signal (PAM) and compare them with the corresponding analog input signal.
7.) To observe PPM and PWM signal and compare it with the analog input signal.
8.) To observe wave form of different modulation Technique (ASK, FSK, DPSK)
INSTRUCTIONAL STRATEGY
The subject requires both theory and practical emphasis simultaneously, so that the student can understand the practical significance of the various areas. Visits to instrumentation and communications industries must be carried out, so as to make the students can understand where and how the various instruments are used in the industry.
MEANS OF ASSESSMENT
− Class test/quizzes
− Home assignments
− Attendance
− Sessional Test
− Practical Tasks
RECOMMENDED BOOKS
- An Introduction to Analog and Digital Communication by Simon Haykin, Wiley Student Edition.
- Electronics Communication System by Kennedy, Tata McGraw Hill Education Pvt Ltd, New Delhi
- Principle of communication Engineering by Taub, TMH Publication.
- E-books/e-tools to be used as recommended by AICTE/NITTTR, Chandigarh.
Download Principles of Communication Engineering Syllabus click here
Download Transmission And Distribution of Electrical Power Syllabus click here
Download Industrial Electronics and Control Syllabus click here
Download Communication Skills 2 Syllabus click here
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