EC6004 Sat Comm Question Papers, Satellite Communication Previous Year Question Papers – ECE 7th SEM Anna University

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EC6004 SAT COMM Question Papers

Anna University Regulation 2013 ECE EC6004 SAT COMM Question Papers for previous years are provided below. Previous Year Question Papers for ECE 7th SEM EC6004 Satellite Communication Engineering are listed down for students to make perfect utilization and score maximum marks with our study materials.

Anna University Regulation 2013 Electronics and Communication Engineering (ECE) 7th SEM EC6004 SAT COMM -Satellite Communication Engineering Syllabus

EC6004                 SATELLITE COMMUNICATION                 L T P C 3 0 0 3

OBJECTIVES:

 To understand the basics of satellite orbits.

 To understand the satellite segment and earth segment.

 To analyze the various methods of satellite access.

 To understand the applications of satellites.

UNIT I SATELLITE ORBITS 9

Kepler’s Laws, Newton‟s law, orbital parameters, orbital perturbations, station keeping, geo stationary and non Geo-stationary orbits – Look Angle Determination- Limits of visibility –eclipse-Sub satellite point –Sun transit outage-Launching Procedures – launch vehicles and propulsion.

UNIT II SPACE SEGMENT AND SATELLITE LINK DESIGN 9

Spacecraft Technology- Structure, Primary power, Attitude and Orbit control, Thermal control and Propulsion, communication Payload and supporting subsystems, Telemetry, Tracking and command. Satellite uplink and downlink Analysis and Design, link budget, E/N calculation- performance impairments-system noise, inter modulation and interference, Propagation Characteristics and Frequency considerations- System reliability and design lifetime.

UNIT III EARTH SEGMENT 9

Introduction – Receive – Only home TV systems – Outdoor unit – Indoor unit for analog (FM) TV – Master antenna TV system – Community antenna TV system – Transmit – Receive earth stations – Problems – Equivalent isotropic radiated power – Transmission losses – Free-space transmission – Feeder losses – Antenna misalignment losses – Fixed atmospheric and ionospheric losses – Link power budget equation – System noise – Antenna noise – Amplifier noise temperature – Amplifiers in cascade – Noise factor – Noise temperature of absorptive networks – Overall system noise temperature – Carrierto- Noise ratio – Uplink – Saturation flux density – Input back off – The earth station – HPA – Downlink – Output back off – Satellite TWTA output – Effects of rain – Uplink rain– Fade margin – Downlink rain – Fade margin – Combined uplink and downlink C/N ratio – Inter modulation noise.

UNIT IV SATELLITE ACCESS 9

Modulation and Multiplexing: Voice, Data, Video, Analog – digital transmission system, Digital video Brocast, multiple access: FDMA, TDMA, CDMA, Assignment Methods, Spread Spectrum communication, compression – encryption.

UNIT V SATELLITE APPLICATIONS 9

INTELSAT Series, INSAT, VSAT, Mobile satellite services: GSM, GPS, INMARSAT, LEO, MEO, Satellite Navigational System. Direct Broadcast satellites (DBS)- Direct to home Broadcast (DTH), Digital audio broadcast (DAB)- Worldspace services, Business TV(BTV), GRAMSAT, Specialized services – E –mail, Video conferencing, Internet.

TOTAL: 45 PERIODS

OUTCOMES:

Upon Completion of the course, the students will be able to:

 Analyze the satellite orbits.

 Analyze the earth segment and space segment.

 Design various satellite applications

TEXT BOOK:

1. Dennis Roddy, “Satellite Communication”, 4th Edition, Mc Graw Hill International, 2006.

REFERENCES:

1. Wilbur L.Pritchard, Hendri G. Suyderhoud, Robert A. Nelson, “Satellite Communication Systems Engineering”, Prentice Hall/Pearson, 2007.

2. N.Agarwal, “Design of Geosynchronous Space Craft”, Prentice Hall, 1986.

3. Bruce R. Elbert, “The Satellite Communication Applications”, Hand Book, Artech House Bostan London, 1997.

4. Tri T. Ha, “Digital Satellite Communication”, II nd edition, 1990.

5. Emanuel Fthenakis, “Manual of Satellite Communications”, Mc Graw Hill Book Co., 1984.

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