Student ID Name Signature IT10086230 P.L.M.Madushanka IT10103050 K.K.G.N.T.Wijethilake IT10089064 D.G.M.Senadheera IT10103814 I.C.K. Abeywikrama DECLARATION We declare that the this project proposal report or part of it was not a copy of a document done by any organization‚ university‚ any other institute or a previous student project group at SLIIT and was not copied from the Internet or other sources. Project Details Project Title Developing a
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1 SATELLITE COMMUNICATION – AN INTRODUCTION Contents 1.1 Introduction 1.2 Basics 1.3 Applications of Satellites o Weather Forecasting o Radio and TV Broadcast o Military o Navigation o Global Telephone o Connecting Remote Areas o Global Mobile Communication 1.4 Frequency Allocation of Satellites 1.5 Types of Orbits o GEO o LEO o MEO o Sun Synchronous Orbit o Hohmann Transfer Orbit o Prograde Orbit o Retrograde Orbit o Polar Orbits 1.6 Examples o INTELSAT o U.S. Domsats o Polar Orbiting Satellites
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cheaper but there is a limitation of size of data that can be transmitted at a given time. Digital technology has revolutionized the way most of the equipments work. Data is converted into binary code and then reassembled back into original form at reception point. Since these can be easily manipulated‚ it offers a wider range of options. Digital equipment is more expensive than analog equipment. Comparison of Analog vs. Digital Quality Digital devices translate and reassemble data and in the process
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system and components. MICROWAVE SYSTEM: A Microwave system normally consists of Transmitter subsystems including a microwave oscillator wave guide and a terminating antenna and a receiver subsystem that includes a receiving antenna transmission line or wave guides‚ A microwave amplifier and a receiver . MICROWAVE SYSTEM: MICROWAVE COMPONENTS: WAVE GUIDE TEES: Wave guide Tees may consists of the E-Plane Tee‚ H-Plane Tee‚ magic Tee‚ Hybrid rings
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1. GSM uses radio frequencies efficiently & due to the digital radio path the system tolerates more intercellular disturbances. 2. The average quality of speech achieved is better than in existing analogue systems. 3. Data transmission is supported throughout the system. 4. Speech is encrypted & subscriber information security is guaranteed. 5. Due to the ISDN compatibility‚ new services are offered compared to analogue systems. 6. International roaming
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source/destination network‚ before another terminal TE is connected. Bearer service comprises all services that enable transparent transmission of data between the interfaces to the network. Interfaces like U‚ S‚ and R in case of ISDN have not been defined for all networks‚ so it depends on the specific network which interface is used as a reference for transparent transmission of data. In classical GSM model‚ bearer services are connection oriented and circuit -or packet- switched. These services only
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outside the building. What are your recommendations? In this situation if the campus is using Omni-directional antennas and we are getting a significant amount of spillage‚ it is a problem that could be related to using Omni-directional antennas. With the antenna signal spilling out much farther than it needs to go in any given direction. It could be a situation where directional antennas in certain spots may have created a much better signal area without there being significant amount of
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inventor of the world ’s first television;[3] the first publicly demonstrated colour television system; and the first purely electronic colour television picture tube. Baird ’s early technological successes and his role in the practical introduction of broadcast television for home entertainment have earned him a prominent place in television ’s history. In 2002‚ Baird was ranked number 44 in the BBC ’s list of the "100 Greatest Britons" following a UK-wide vote.[4] In 2006‚ Logie Baird was also named
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legitimate path to route packets via it (i.e. launh attack) and later see remedies for it. 2 Wormhole Attack Modes Wormhole attack can be launched using many ways. Following are some of modes. • Encapsulation • Out-of-Band Channel • High Power Transmission • Packet Relay • Protocol Deviations Now we will see each
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television dramas of the 1940s and 1950s. Discuss at least four specific factors that contributed to the demise of this program type. What does the demise of this format suggest about program limitations and the influence of advertisers in commercial broadcast television? Ex. of teleplay : Marty in 1953 (butcher) by Paddy Chayefsky‚ Man Against Crime (independent writers for each episode) Anthology- a radio or television series that presents a different story and a different set of characters in each
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