OUTLINE
➢ Introduction
➢ Model of Communication System
n n n
➢ Modulation Technique n
➢ Analog Modulation
n
➢ Digital Modulation
n
➢ Signal System
n
➢ Bandwidth of PCM,DPCM,DM And ADM
n n n n
➢ Detection and Production of AM
n n n n
➢ Noise
, INTRODUCTION
➢ The transmission of information is called communication.
n n n n n n
➢ It is required that sender and receiver should understand the same language.
n n n n n n n n n n n
➢ we have been improving the quality of communication on behalf of growing d
n n n n n n n n n n n n
mand for speed and complexity of information.
n n n n n n
➢ The aim of this slides is to introduce the concepts of communication and the techniq
n n n n n n n n n n n n n n
modulation sub sequent signal analysis and so on
n n n n n n n
MODEL OF COMMUNICATION SYSTEM
n n n
,➢ Every communication has three essential elements : transmitter, channel and receiver Here the t
n n n n n n n n n n n n n
ransmitter is placed at one place and receiver is placed another place and the channel is the phys
n n n n n n n n n n n n n n n n n
cal medium that connect them.
n n n n
➢ The purpose of transmitter is to convert into suitable form of signal that can transmitted
n n n n n n n n n n n n n n
through the channel. n n
➢ If the o/p of the information source is a non electric signal then a transducer convert it into electr
n n n n n n n n n n n n n n n n n n
c form before it pass through the channel. Moreover, noise is introduced in channel so receiver r
n n n n n n n n n n n n n n n n
econstruct it and send the information to user for. n n n n n n n n
➢ There are two basic type of communication namely point to point and broadcast. The former tak
n n n n n n n n n n n n n n n
e place over a link between a single transmitter and receiver, while later one have large number
n n n n n n n n n n n n n n n n
of receiver corresponding to a single transmitter.
n n n n n n
➢ Radio and TV comes under broadcastn n n n n
,
➢ Introduction
➢ Model of Communication System
n n n
➢ Modulation Technique n
➢ Analog Modulation
n
➢ Digital Modulation
n
➢ Signal System
n
➢ Bandwidth of PCM,DPCM,DM And ADM
n n n n
➢ Detection and Production of AM
n n n n
➢ Noise
, INTRODUCTION
➢ The transmission of information is called communication.
n n n n n n
➢ It is required that sender and receiver should understand the same language.
n n n n n n n n n n n
➢ we have been improving the quality of communication on behalf of growing d
n n n n n n n n n n n n
mand for speed and complexity of information.
n n n n n n
➢ The aim of this slides is to introduce the concepts of communication and the techniq
n n n n n n n n n n n n n n
modulation sub sequent signal analysis and so on
n n n n n n n
MODEL OF COMMUNICATION SYSTEM
n n n
,➢ Every communication has three essential elements : transmitter, channel and receiver Here the t
n n n n n n n n n n n n n
ransmitter is placed at one place and receiver is placed another place and the channel is the phys
n n n n n n n n n n n n n n n n n
cal medium that connect them.
n n n n
➢ The purpose of transmitter is to convert into suitable form of signal that can transmitted
n n n n n n n n n n n n n n
through the channel. n n
➢ If the o/p of the information source is a non electric signal then a transducer convert it into electr
n n n n n n n n n n n n n n n n n n
c form before it pass through the channel. Moreover, noise is introduced in channel so receiver r
n n n n n n n n n n n n n n n n
econstruct it and send the information to user for. n n n n n n n n
➢ There are two basic type of communication namely point to point and broadcast. The former tak
n n n n n n n n n n n n n n n
e place over a link between a single transmitter and receiver, while later one have large number
n n n n n n n n n n n n n n n n
of receiver corresponding to a single transmitter.
n n n n n n
➢ Radio and TV comes under broadcastn n n n n
,
