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Satellite and Optical Communication VTU University 5th SEM Electronic Communication and Engineering notes, 2022 scheme Notes, study materials, question paper

Satellite and Optical Communication VTU University 5th SEM Electronic Communication and Engineering | BEC515D notes

BEC515D-Satellite and Optical Communication

VTU University notes on 5th SEM Electronic Communication and Engineering 2022 scheme notes 2024. Study materials and previous year question papers on easenotes 2024.

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Scheme & Syllabus Copy of Satellite and Optical Communication

? Satellite and Optical Communication Syllabus (Semester V) – BEC515D

Course Code: BEC515D
Course Title: Satellite and Optical Communication
Semester: V
Credits: 03
Teaching Hours/Week: 3 (L:3, T:0, P:0, S:0)
Total Contact Hours: 50
CIE Marks: 50
SEE Marks: 50
Total Marks: 100
Examination Type: Theory
Exam Duration: 3 Hours

? Course Objectives

The objective of the Satellite and Optical Communication course is to enable students to:

  • Understand the basic principles of satellite orbits and trajectories

  • Study electronic subsystems of satellites and earth stations

  • Learn various communication satellite technologies

  • Understand the fundamentals of optical fiber communication

  • Analyze transmission characteristics, losses, optical components, and applications

? Teaching–Learning Process

To achieve the desired learning outcomes, the following strategies are adopted:

  1. Interactive lectures with real-world applications

  2. Use of videos, animations, and simulations

  3. Collaborative group learning

  4. Higher Order Thinking Skills (HOTS) questions

  5. Problem-Based Learning (PBL)

  6. Concepts introduced using multiple representations

  7. Encouragement of creative problem-solving approaches

  8. Linking theory to real-world communication systems

? Detailed Syllabus (Module-wise)

? Module 1: Satellite Orbits and Trajectories

  • Definition and basic principles of satellite motion

  • Orbital parameters

  • Injection velocity and satellite trajectory

  • Types of satellite orbits

  • Orbital perturbations

  • Satellite stabilization techniques

  • Orbital effects on satellite performance

  • Eclipses

  • Look angles:

    • Azimuth angle

    • Elevation angle

Learning Levels: L1, L2
Reference: Text 1 (Sections 2.1–2.5, 3.3–3.7)

? Module 2: Satellite Subsystems and Earth Stations

Satellite Subsystems:

  • Power supply subsystem

  • Attitude and orbit control

  • Tracking, telemetry, and command (TT&C)

  • Payload

Earth Stations:

  • Types of earth stations

  • Architecture of earth stations

  • Design considerations

  • Testing and maintenance

  • Earth station hardware

  • Satellite tracking

Learning Levels: L1, L2
Reference: Text 1 (Sections 4.1, 4.5–4.8, 8.1–8.7)

? Module 3: Communication Satellites

  • Introduction to communication satellites

  • Satellite communication applications

  • Frequency bands

  • Satellite payloads

  • Satellite vs terrestrial networks

  • Satellite telephony

  • Satellite television

  • Satellite radio

  • Regional satellite systems

  • National satellite systems

Learning Levels: L1, L2
Reference: Text 1 (Sections 9.1–9.10)

? Module 4: Optical Fiber Communication Fundamentals

Optical Fiber Structures:

  • Optical fiber modes and configurations

  • Mode theory for circular waveguides

  • Single-mode fibers

  • Fiber materials

Attenuation and Dispersion:

  • Attenuation mechanisms

  • Absorption losses

  • Scattering losses

  • Bending losses

  • Signal dispersion:

    • Modal delay

    • Group delay

    • Material dispersion

Learning Levels: L1, L2, L3
Reference: Text 2 (Sections 2.3–3.2)

? Module 5: Optical Sources, Detectors, and WDM

Optical Sources:

  • Light Emitting Diodes (LEDs):

    • Structure

    • Materials

    • Quantum efficiency

    • Output power

  • Laser Diodes:

    • Modes of operation

    • Threshold condition

    • Rate equations

    • External quantum efficiency

    • Resonant frequencies

Optical Detectors:

  • PIN photodetector

  • Avalanche photodiode (APD)

WDM Concepts:

  • Introduction to Wavelength Division Multiplexing

  • Optical isolators and circulators

  • Fiber Bragg grating filters (no derivation)

  • Dielectric thin-film filters

  • Diffraction gratings

Learning Levels: L1, L2
Reference: Text 2 (Sections 4.2, 4.3, 6.1, 10.1–10.7)

? Course Outcomes (COs)

Upon successful completion of the course, students will be able to:

  1. Explain satellite orbits and trajectories with relevant parameters

  2. Describe satellite subsystems and earth station hardware

  3. Analyze communication satellites with emphasis on national systems

  4. Classify and characterize optical fibers based on propagation modes

  5. Explain construction and characteristics of optical sources and detectors

? Assessment Scheme

Continuous Internal Evaluation (CIE) – 50 Marks

  • Internal Assessment Tests: 25 Marks

  • Assignments / Project Work: 25 Marks

Minimum CIE Passing Marks: 20/50

Semester End Examination (SEE) – 50 Marks

  • Duration: 3 Hours

  • Total Questions: 10 (20 marks each)

  • 2 questions per module

  • Students must answer 5 questions (one from each module)

  • Marks reduced proportionally to 50

Minimum SEE Passing Marks: 18/50