Ec8094 satellite communication notes

Anna University Old Question Paper Question Paper Code: X10347 B.E./B.Tech. DEGREE EXAMINATION, NOVEMBER/DECEMBER 2020 AND APRIL/MAY 2021 Fifth/Seventh/Eighth Semester Geoinformatics Engineering EC 8094 – Satellite Communication (Common to Electronics and Telecommunication Engineering, Electronics and Communication Engineering) (Regulation 2017) Time: Three Hours Maximum: 100 Marks Attachments and PDF Link: Anna University EC 8094 – Satellite Communication For Geoinformatics Engineering November/December 2020 and April/May 2021 Scanned Copies: B.E Civil Engineer Graduated from Government College of Engineering Tirunelveli in the year 2016. She has developed this website for the welfare of students community not only for students under Anna University Chennai, but for all universities located in India. That's why her website is named as www.IndianUniversityQuestionPapers.com . If you don't find any study materials that you are looking for, you may intimate her through contact page of this website to know her so that it will be useful for providing them as early as possible. You can also share your own study materials and it can be published in this website after verification and reviewing. Thank you! • • • • •

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⚫ 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 I – Satellite Orbits History ⚫ The first artificial satellite was the soviet Sputnik-1 , launched on October 4, 1957 , and equipped with an on-board transmitter that worked on two frequencies, 20.005 and 40.002 MHz ⚫ The first American satellite to relay communications was project SCORE in 1958 , which used a tape recorder to store and forward voice messages. ⚫ Telstar was the first active, direct relay communications satellite. Belonging to AT&T. Satellite communication In satellite communication, signal transferring between the sender and receiver is done with the help of satellite. In this process, the signal which is basically a beam of modulated microwaves is sent towards the satellite. Then the satellite amplifies the signal and sent it back to the receiver’s antenna present on the earth’s surface. So, all the signal transferring is happening in space. Thus this type of communication is known as space/satellite communication. Orbit Satellites move in a path around the Earth called an orbit. ⚫ The orbit is a combination of the satellite's velocity - the speed it is travelling in a straight line - and the force of the Earth's gravitational pull on the satellite. These f...