Communication systems vishal (10IM10030)
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Transcript of Communication systems vishal (10IM10030)
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COMMUNICATION
SYSTEMS
BY
VISHAL KUMAR SINHA
IIT KHARAGPUR
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FATHER OF WIRELESS
TECHNOLOGY
J.C.BOSE
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THREE BASIC ELEMENTS OF COMMUNICATION SYSTEM :
TRANSMITTER MEDIUM RECEIVER
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TWO BASIC MODES OF COMMUNICATION
POINT TO POINT
EG -TELEPATHY
BROADCAST
EG –RADIO,TELEVISION
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THERE ARE THREE TYPES OF MODULATION
AMPLITUDE MODULATION
(AM)
FREQUENCE MODULATION
(FM)
PHASE MODULATION
(PM)
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C(t) = A ͨsin( w ͨt + Φ ) ͨ
[SIGNAL STRENGTH]
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