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Department of Aeronautical Engineering, REC
Subject Code Subject Name Category L T P C
AV19201 COMMUNICATION AND NAVIGATION SYSTEMS PC 3 0 0 3
Objectives:
⚫ To introduce the fundamental concepts of communication and navigation.
⚫ To introduce the principle and working of optical communication systems.
⚫ To introduce the principle and working of satellite communication systems.
⚫ To provide the knowledge on various radio navigation systems.
⚫ To expose students to basic concepts of navigation, and satellite and hybrid navigation.
UNIT-I INTRODUCTION TO COMMUNICATION 5
Fundamental of communication systems, signals and information, system block diagram, performance metrics and data
rate limits. Review of Fourier series and Transforms – Energy/Power Spectral Density. Amplitude modulation and
frequency modulation.
UNIT-II OPTICAL COMMUNICATION 10
Optical fibres fundamentals - total internal reflection, single mode and multimode fibres, step index, graded index fibres,
attenuation effects, cut-off wavelengths. Optical sources and detectors - LEDs, LED structures, injection laser diodes,
PIN photo detectors, avalanche photo diodes, photo detector noise. Optical modulation and modulators, Optical
amplifiers. Design of an optical communication link, OTDR. Optical networks- SONET/SDH optical CDMA.
UNIT-III SATELLITE COMMUNICATION 10
Modelling the space link - frequency allocation for satellite communication, satellite orbits and link availability, radio
wave propagation for satellite communication - atmospheric losses, ionospheric effects, rain attenuation and antennae
for satellite communication. Polarization effects. Equivalent isotropic radiated power, transmission losses, link power
budget, system noise, carrier to noise ratio, effects of rain, inter-modulation noise, inter-satellite links. Interference in
satellite systems. Multiple access methods for satellite communication - FDMA, TDMA, CDMA. Introduction to
satellite networks.
UNIT-IV INTRODUCTION TO NAVIGATION SYSTEM 10
Radio navigation-ADF,DME,VOR,LORAN,DECCA,OMEGA,ILS,MLS-Inertial Navigation Systems(INS)-Inertial
Sensors, INS block diagram-Satellite navigation system-GPS,IRNSS(NAVIC)
UNIT-V SATELLITE NAVIGATION & HYBRID NAVIGATION 10
Introduction to GPS -system description -basic principles -position and velocity determination-signal structure-DGPS,
Introduction to Kalman filtering-Estimation and mixed mode navigation-Integration of GPS and INS-utilization of
navigation systems in aircraft. Introduction to IRNSS(NAVIC)
Total Contact Hours : 45
Course Outcomes:
On completion of course students will be able to
The students will understand the concepts of Communication and Navigation the necessary knowledge needed in
⚫
modelling the communication and navigation process and methods.
⚫ Understand the basic principles and working of optical communication systems.
⚫ Understand the various aspects related to the satellite navigation systems.
The students will have an exposure on various communication and navigation systems such as satellite systems,
⚫
inertial measurement systems, radio navigation systems, satellite navigation – GPS ; Landing aid.
Deploy these skills effectively in the analysis and understanding of communication and navigation systems in an
⚫
aircraft.
Text Books:
1 Gerd Keiser - Optical fiber communication, McGraw Hill
2 Timothy Pratt, Charles W. Bostian - Satellite Communications, John Wiley and Sons
3 Myron Kyton, Walfred Fried, ‘Avionics Navigation Systems’, John Wiley & Sons,2nd edition, 1997
Reference Books / Web links:
1 Simon Haykin, Communication Systems
2 John M. Senior - Optical fiber communication, Pearson
3 J. Gower - Optical communication systems, Prentice Hall
4 Dennis Roddy - Satellite Communications, 4th edition, McGraw Hill.
5 Bruce R. Elbert - Introduction to Satellite Communication, 3rd edition, Artech House
6 Nagaraja, N.S. “Elements of Electronic Navigation”, Tata McGraw-Hill Pub. Co., New Delhi, 2nd edition, 1975.
7 George M Siouris, ‘Aerospace Avionics System; A Modern Synthesis’, Academic Press Inc., 1993.
8 Albert Helfrick, ‘Practical Aircraft Electronic Systems’, Prentice Hall Education, Career & Technology, 1995.
Curriculum and Syllabus | M.E. Avionics | R2019 Page 21
