Satellite communication
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This document provides an overview of the history of satellite communication. It discusses early satellites like Sputnik 1, the first artificial satellite launched by the Soviet Union, and Telstar 1, the first to transmit transatlantic television signals. It also mentions Intelsat and the introduction of geosynchronous orbit. The document then discusses the basics of how satellite communication works and the advantages it provides like global coverage and high bandwidth. Some disadvantages like cost and signal delay are also noted. Contact information is provided at the end.
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This presentation discusses satellite communication and the components of satellite systems. It describes the history of satellites beginning with Sputnik 1 in 1957. The key components of a satellite are explained, such as batteries, thrusters, and transponders. Different types of satellite orbits - such as low earth orbit, medium earth orbit, and geostationary orbit - are defined. The uses of satellites include long distance communication, weather forecasting, television broadcasting, and remote sensing. Advantages include global coverage while disadvantages include high launch costs.
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Satellite communication systems use satellites as relay stations to transmit signals between Earth stations. Geostationary satellites orbit at 35,786 km, allowing them to remain fixed over one position on Earth. Low Earth orbit satellites are closer but require a network to provide coverage. Satellite communication provides advantages over terrestrial systems like wider coverage areas and transmission costs being independent of distance. However, launching satellites is costly and bandwidth is limited. Different satellite types are used for communications, weather monitoring, mapping and surveillance.
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- Satellite history began in 1911 with the concept of radio propagation through space. Major milestones include the first geostationary satellite theory in 1945 and launches of early satellites by the US and USSR in the late 1950s.
- Satellites can be in low, medium, or geostationary orbits and provide services like mobile communication, navigation, weather monitoring, and television broadcasting.
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orbit information around tthe earth
Satellite technology has progressed significantly over the last 50 years and now provides broadband communications, audio/video distribution, navigation, customer service, and military applications. Satellites play an important role in emerging 4G infrastructure and the vision of connectivity anywhere, anytime. Satellites orbit Earth and help with communication, mapping weather, TV, internet, and phone services. There are three main types of orbits - low Earth orbit (LEO), medium Earth orbit (MEO), and geostationary Earth orbit (GEO).
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Satellite communication systems allow signals to be transmitted and received via satellites orbiting Earth. Key elements include the space segment consisting of satellites and the ground segment of earth stations. Satellites transmit signals in various frequency bands. Applications include internet access, environmental monitoring, disaster management, television and radio broadcasting, broadband internet, and military communications. While satellites provide global coverage, disadvantages include high capital costs and signal propagation delays. Satellite technology is crucial for many areas of modern society and communications.
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This document discusses the history and types of satellites and their orbits. It notes that the first satellite, Sputnik, was launched by Russia in 1957. India's first satellite, Aryabhatta, was launched in 1975. There are three main types of orbits for satellites: low Earth orbit (LEO) with a period of 1.5 hours, medium Earth orbit (MEO) taking 6 hours, and geostationary Earth orbit (GEO) requiring 24 hours to complete one revolution.
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This document provides an overview of satellite communication systems. It discusses the need for satellites due to the curvature of the Earth, the different regions of space including low-Earth orbit (LEO), medium-Earth orbit (MEO), and geostationary orbit (GEO). It describes the basic components of a satellite system including satellites, ground stations, uplinks and downlinks. It also covers communication characteristics, advantages and disadvantages of satellite systems, and provides a historical overview of important milestones in satellite communication technology.
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This Powerpoint Presentation is basically about satellite communication .It also consist information about various orbits and applications of satellite communication in different field.
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This presentation discusses satellite communication and the components of satellite systems. It describes the history of satellites beginning with Sputnik 1 in 1957. The key components of a satellite are explained, such as batteries, thrusters, and transponders. Different types of satellite orbits - such as low earth orbit, medium earth orbit, and geostationary orbit - are defined. The uses of satellites include long distance communication, weather forecasting, television broadcasting, and remote sensing. Advantages include global coverage while disadvantages include high launch costs.
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Satellite communication systems use satellites as relay stations to transmit signals between Earth stations. Geostationary satellites orbit at 35,786 km, allowing them to remain fixed over one position on Earth. Low Earth orbit satellites are closer but require a network to provide coverage. Satellite communication provides advantages over terrestrial systems like wider coverage areas and transmission costs being independent of distance. However, launching satellites is costly and bandwidth is limited. Different satellite types are used for communications, weather monitoring, mapping and surveillance.
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- Satellite history began in 1911 with the concept of radio propagation through space. Major milestones include the first geostationary satellite theory in 1945 and launches of early satellites by the US and USSR in the late 1950s.
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- Common satellite access technologies include SCPC, TDMA, MF-TDMA, DVB,
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Satellite technology has progressed significantly over the last 50 years and now provides broadband communications, audio/video distribution, navigation, customer service, and military applications. Satellites play an important role in emerging 4G infrastructure and the vision of connectivity anywhere, anytime. Satellites orbit Earth and help with communication, mapping weather, TV, internet, and phone services. There are three main types of orbits - low Earth orbit (LEO), medium Earth orbit (MEO), and geostationary Earth orbit (GEO).
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2. Satellites are launched into various types of orbits and act as repeaters, receiving signals from ground stations and retransmitting them back to Earth.
3. Ground stations contain antennas, transmitters, receivers and control equipment to send signals to satellites and receive signals back from satellites. They allow communication between various locations via satellites.
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hiee guyes this is swapnil thaware here i uploaded slide for your knowledge if you want more detail msg me on fb or mail i will help you
thanking you and slideshare.com
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hiee guyes this is swapnil thaware here i uploaded slide for your knowledge if you want more detail msg me on fb or mail i will help you
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The document summarizes satellite communications and its components. It discusses how satellites are placed in geosynchronous orbit to appear stationary over a location on Earth. It describes the uplink and downlink systems, and how multiple satellites can provide global coverage through cross-linking. The key components of a satellite are also outlined, including the transponder and antenna system, power package, and control/information and thruster systems. Common uses of satellite communications discussed include traditional telecommunications, cellular networks, and television broadcasting.
Satellite communication full report original 2
The document provides an overview of satellite communication techniques for military aircraft. It discusses that while currently used UHF satellite communication is inexpensive and simple to install, it has limited capacity and is prone to interference. SHF and EHF satellite techniques offer increased bandwidth and capabilities like adaptive antennas. The document then discusses various components of satellite communication systems like different frequency bands used, types of satellites including GEO and LEO, advantages of satellite communication over terrestrial networks, and applications.
INTERPLANETARY INTERNET
The document discusses plans for an Interplanetary Internet (IPN) that would connect networks across the solar system. It describes how an IPN would use a network of regional internets extended to neighboring planets to allow for communication between Earth, Mars, and beyond. Key components would include NASA's Deep Space Network on Earth, a constellation of satellites orbiting Mars, and a new protocol to transfer data over long distances and delays. The IPN aims to address current challenges with space communication by providing more robust and reliable connectivity throughout the solar system.
satellite.pptx
This document provides an overview of satellite communication, including:
- The basic components and working of satellite communication systems, including satellites in orbit that transmit signals between ground stations.
- The different types of satellite orbits used in communication systems, including geostationary orbit which allows antennas to remain fixed, and low earth orbit.
- Key events in the history and development of satellite communication technology, including early concepts in science fiction and the launch of the first artificial satellite Sputnik 1.
- The services and applications that satellite communication enables, such as television and radio broadcasting, telephone networks, and internet access globally.
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Satellite communication
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- 4. Name Note SPUTNIK I The first artificial satellite to be put into Earth's orbit. It was launched into an elliptical low Earth orbit by the Soviet Union on October 4, 1957. US forms advance Research Projects Agency (ARPA) within the department of Defense after USSR launches Sputnik, in order to compete in science and Technology. Sputnik I Page 4
- 5. Telstar The AT&T Telstar I satellite was launched on July 10th, 1962, and later that same day transmitted the first live television images from the United States to France. Intelsat Geosynchronous earth orbit ,open to use by all nations in 1964-1979 DirecTV Begins Direct Broadcast to Home in 1994 Iridium Was supposed to provide mobile telephone service. by MOTOROLA Intelsat Telstar Iridium Page 5
- 6. Basics of satellite communication Types of satellites Structure & Working of satellite Advantages & Disadvantages Page 6
- 7. How satellites works? The two stations can use a satellite as a relay station for their communication One Earth Station sends a transmission to the satellite. This is called a Uplink. The satellite Transponder converts the signal and satellite sends it down to the second earth station. This is Transmitting Earth called a Downlink. station uplink Downlink Receiving Earth station Page 7
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- 11. Based on the Satellite Altitude GEO – Geostationary Orbits • 36000 Km = 22300 Miles, equatorial MEO – Medium Earth Orbits • High bandwidth, High power LEO – Low Earth Orbits • Low power, More Satellites VSAT • Very Small Aperture Satellites Private WANs Page 11
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- 13. Basics: Advantages of Satellites The advantages of satellite communication Satellite to Satellite communication is very precise. Higher Bandwidths are available for use. Predicting weather High speed internet Telephones Detecting pollutants Gathering information about large bodies Page 13
- 14. Disadvantages of Satellites Cost to Provider Cost to Consumer Signal Delay Unreliability Page 14
- 15. Page 15
- 16. adeel_tc@hotmail.com 0315-4632432 Page 16