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SATELLITE COMMUNICATION: Beginner Guide
SATELLITE COMMUNICATION UNIT I SATELLITE ORBITS Keplers Laws, Newtons 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. 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. 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 Earth Station Technology Terrestrial Interface, Transmitter and Receiver, Antenna Systems TVRO, MATV, CATV, Test Equipment Measurements on G/T, C/No, EIRP, Antenna Gain. 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. Read more