Issues, Challenges and its Future Application of Satellite
Communication System
Download Full-Text PDF Cite this Publication V. Sugadev, T.
Bhuvaneshwaren, zero, Issues, Challenges and its Future Application of
Satellite Communication System, INTERNATIONAL JOURNAL OF ENGINEERING RESEARCH
& TECHNOLOGY (IJERT) Confcall – 2018 (Volume 06 – Issue 14),
Issues, Challenges and its Future Application of Satellite
Communication System
Issues, Challenges and its Future Application of Satellite
Communication System
Dept of Aeronautical Engineering Parisutham Institute of
Technology and Science,
Thanjavur, Tamilnadu-India
Dept of Aeronautical Engineering Parisutham Institute of
Technology and Science,
Thanjavur, Tamilnadu-India
Abstract – Communication within the entire of the World is
revolutionized with the advent of Satellites. Satellite Communication has
served mankind in lots of ways e.G. To are expecting weather, typhoon caution,
provide huge range of communication services in the area of relaying tv packages,
digital statistics for a multitudes of business services and maximum recent in
telephony and cell verbal exchange. It might not marvel world community, if
satellite tv for pc verbal exchange hyperlinks can be used for voice and fax communication
to Aircraft on International routes in near destiny. GPS Navigation, Global
telephony, Multimedia video and net connectivity, Earth Imaging through Remote
sensing satellites for aid tracking, Telemedicine, Tele-training services and
many others. Are other feathers in Satellite communication applications. @ Read More greenitc1403 robotstechnologyies
Satellite communique machine has entered transition from
point-to-point excessive value, high ability trunks communique to multipoint
to-multipoint verbal exchange with low cost. Satellite Communication has moved
in many steps in advance like frequency reuse, interconnecting many ground
terminals unfold over the world, idea of multiple spot beam communications,
Laser beam based totally verbal exchange thru satellites and use of networks of
small satellites in low earth orbit. In this paper satellite tv for pc
communique advancement, exclusive utility component present and future is
mentioned. Satellite conversation has many software and marketplace if we will
pool our assets, come up with revolutionary and low value answers for world
network.
Keywords Satellites, GPS Navigation, Remote Sensing,
Telemedicine, Frequency reuse, Networks of satellites.
Satellite verbal exchange provider enterprise has grown
greater rapidly than became forecasted in 1992.This increase has been a global
phenomenon because the economies of global have extended and progressed a
extraordinary volume requiring improved conversation services for both business
and client markets. With this accelerated call for and recent big, speedy
growth of business, consumer terrestrial cellular and internet communication
services has opened new opportunities for satellite tv for pc verbal exchange.
Mobile and Internet shipping get right of entry to corporations have stimulated
the demand for brand new multi- nation satellite constellation to serve this
marketplace on each the national and global scale. Growth in above areas
coupled with the global increase inTV viewer deliver and excessive records rate
delivery have been responsible for the latest and destiny predicted increase.
There is also new demand for included satellite tv for pc, terrestrial
communications in order to allow the shipping of information
seamlessly throughout these shipping media. Theslarge and swiftly growing
satellite primarily based business opportunities have attracted the attention
of presidency and commercial interests of many countries and these nations are
making widespread investments of latest capital to permit them to participate
in this boom market. Many international locations have allocated budget for
satellite tv for pc R&D tasks to make certain their long time presence
inside the business satellite tv for pc enterprise. The enlargement of
satellites into new packages and the accelerated international demand for
satellite tv for pc communications services have attracted the attention of
funding community.
This has resulted in the formation of latest satellite tv
for pc provider carriers and inspired mergers and acquisitions, the advent of
new groups, the formation of world partnership and the privatisation of
formerly public satellite provider companies. The satellite communication
industry has grown noticeably and range of professionals and range of
activities have grown as well . In the beyond, commercialcommunication
satellite manufacturing and provider company corporations tended to be
conservative and to be hesitant approximately putting new technology into
satellites. This has changed in response to instant need to serve customers
burgeoning demand for entertainment programming TV, cell communications and get
admission to to high bandwidth Internet records. Industry is putting new era
into satellites at rapid pace.
Recent examples includes onboard processing and switching,
greater green sun cellular, better power components, greater efficient warmth
dissipation techniques, electric-based totally station retaining thrusters,
inter satellite links, big antennas, phased array antennas, antennas with
severa spot beams andimproved TWTAs.Increasingly, Satellite is no longer being
regarded as a easy bent pipe however as an vital component of a huge global
communications networking system, requiring interoperability between satellite
and terrestrial conversation components and therefore compatible
protocols and requirements. This integration of satellites
into the worldwide network will require satellite tv for pc industry to
anticipate large software operations and broaden new enduser offerings.
ELEMENT OF SATELLITE COMMUNICATION
Satellite verbal exchange has basic two elements as proven
in Fig.1 popular view:
Satellite itself is known as space section and created from
complex structure. It has some fundamental subsystem like TTC system,
Transponder, Fuel Tank referred to as thrusters tank, Antenna system and
Control system and so on. Satellite transponder consists of the receiving
antenna to receive signals from ground stations, a broad band receiver,
multiplexer and frequency converter that is used to reroute the received
indicators through excessive powered amplifier to downlink the floor stations.
Satellite role is to transpond the obtained sign in different shape of signal
to be re transmitted to floor stations. For instance of television vast cast in
which TV programs are up-related to satellite tv for pc, satellite transpond it
and down connected over a much broader place, in order that it may be received
through many unique clients processing compatible device. Another use of
satellite is remark in which satellite tv for pc is ready with cameras, various
sensors and it simply downlinks any records it choices up from its vantage
point.
Fig.1 satellite tv for pc conversation
The earth stations are ground section of satellite tv for pc
communication. Earth Station has two fold roles. In case of uplink or
transmitting station terrestrial records within the shape of base band
indicators is exceeded thru a base band processor, an up converter, a excessive
powered amplifier and through parabolic dish antenna as much as an orbiting
satellite. In case of down link or receiving station vice versa job completed
and in the end changing signals acquired via the parabolic antenna to base band
sign.
SATELLITE COMMUNICATION, ISSUES AND CHALLENGES
New paradigm for satellite tv for pc layout, prototyping and
manufacturing Satellite manufacturing conventional sample of tremendously
specialized, customised, designed and built some at a time is now changing.
More emphasis is positioned now on the use of not unusual buses and use of CAD
tools to customize the communications payloads. Mass produced gadget is
followed and lots of satellites are produced right now in an meeting line environment.
Integration and checking out is
highly computerized. The quantity and nature of testing is
decreased afterprototyping and initial manufacturing is completed.
New High Powered Platform
One of the key technical traits in response to the
deployment of LEO and MEO satellites has been the design of big aperture GEO
device with very excessive energy gadget. Earlier commercial satellite tv for
pc strength era became restricted to 7 to twelve KW. But new technology
designers have begun to talk about large flexible of floppy solar array
generating 50-60 KW. Also intensive efforts are underway to enhance sun mobile
overall performance via the use of gallium arsenide/germanium, multi-junction
cells with promise of sun mobile efficiencies above 30%. There are parallel
efforts to enhance battery i.E. Lithium ion and gas cellular era with a purpose
to produce better and better powered satellites.
Critical Future Technologies
Critical technology for future satellite communications are:
Devices and systems for Phased
Array and Multiple spot beam antennas on the floor and in
space
Fuels and combustion systems for launch motors
High frequency (>20GHz) devices
Materials for electronics devices
Solar mobile materials and systems
Network era for high records price, integrated Space and
terrestrial systems
Optical additives and sub systems
Radiation resistant tool systems and circuits
Strong and light-weight material @ Read More modernfashdesigner thetechcertified
