FEA Based Level 3 Assessment of Deformed Tanks with Fluid Induced Loads
satellite-communicationsss.pptx
1. A
Seminar on
INTRODUCTION TO SATELLITE
Presented By
SWAPNIL G. THAWARE
20100764
Under the Guidance of
Prof. HIVRE S. R.
Dr. Babasaheb Ambedkar Technological University,
Department Of Information technology Engineering
LONERE-402 103
2011-2012
2. CONTENTS :
What’s mean by satellite ?
History of Satellites :
Layer Of Atmosphere :
Generalized communication system :
What are the components of a satellite?
How Satellites Work ?
How do satellite stay in orbit ?
Why satellite are launched 36,000 Km from centre of earth ?
Types of bands :
Types of orbits :
Global position system :
Advantages And Disadvantages Of satellite :
Uses of satellite :
References :
3. what’s mean by sATELLITE ?
Passive Satellites Active satellites
I. Natural satellites
II. artificial satellites.
A passive satellite only
reflects received signals back
to earth.
Ex.moon is a natural satellite
of earth
Active satellites are
complicated structures
having a processing
equipment called
Transponder .
An active satellite acts as a
REPEATER
A Satellite is a solid object which revolves around some
body due to the effect of gravitational forces OR
a satellite is an object which has been placed into
orbit by human endeavour.
4. History of Satellites :
First satellite that was used
for communication
purpose in INDIA was
-ARYABHATTA (19 April
1975)
The first geostationary
communication satellite
-SYNCOM 3(19 Aug 1963).
Father of geostationary
communication satellite is
-HAROLD ROSEN
(Aircraft engineer)
The world's first artificial satellite is the Sputnik 1
was launched in 1957
7. What are the components of a satellite?
Many satellites are
powered by
rechargeable
batteries.
Small thrusters
provide attitude i.e.
stabilize the satellite's
position in space.
8. How Satellites Work :
I. A Earth Station
sends message in
GHz range (Uplink).
II. Satellite Receive and
retransmit signals
back. (Downlink)
III. Difference between
Downlink and
Uplink frequency is
2 GHz.
9. Interesting, right?
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