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Why the received signal in analog communication is distorted by the channel noise than that of digital communication?
Wiki User
∙ 14y ago
If an RF signal is AM modulated with a analogue signal any noise will add or subtract to the amplitude of the RF signal and will be present in the audio signal after detection, also will the noise add itself to the audio signal, where as in digital communication a slight variation in the amplitude of the signal is of no concern because you only work with ones and zeros, it's high or it's low
Wiki User
∙ 14y ago
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How is the channel used in the digital communucation system?
The channel used in a digital communication system is used to convey an information signal. A channel has certain capacity for putting in information that is measured by bandwidth in Hz or data rate.
What are analog and digital modes of operation of an instrument?
In Analog communication, the analog message signal modulates some high carrier frequency inside the transmitter to produce modulated signal.this modulated signal is then transmitted with the help of a transmitting antenna to travel through the transmission channel. At the receiver, this modulated signal is received and processed to recover the original message signal. Example: AM , FM radio transmission an TV transmission. In digital communication, the message signal to be transmitted is digital in nature. This means that digital communication involves the transmission information in digital form Example: ASK, FSK, PSK.
What are commonly used communication channels?
Digital (discrete) or analog (continuous) channelBaseband and passband channelTransmission medium, for example a fibre channelMultiplexed channelComputer network virtual channelSimplex communication, duplex communication or half duplex communication channelReturn channelUplink or downlink (upstream or downstream channel)Broadcast channel, unicast channel or multicast channel
What are the advantages of using digital signals and why?
* Digital signals suffer less interferences than analogue signals. This means that when you listen to a digital signal you won't hear a hissing sound, as within digital signals regenerator circuits are used to clean "noisy" pulses. * Digital signals can be made very short so more pulses can be carried around each second, which means more information can be passed on.
What are the subjects in the electronics and communication?
signal and system,digital logic design , engineering maths,
Types of communication channel?
The two types of communication channel are analog and digital communication channel. An analog channel uses continuously varying (analog) electrical signals while a digital one uses discrete signals.
How is communicating using the computer different from communicating using physical presence or written channel?
communication using computers is digital communication while that of physical or written channel is analog communication.
How is the channel used in the digital communucation system?
The channel used in a digital communication system is used to convey an information signal. A channel has certain capacity for putting in information that is measured by bandwidth in Hz or data rate.
What are the capabilities of digital communication systems?
A digital communication system consists of six basic blocks. The functional blocks at the transmitter are responsible for processing the input message, encoding, modulating, and transmitting over the communication channel.
Analog & digital communication?
In Analog communication, the analog message signal modulates some high carrier frequency inside the transmitter to produce modulated signal.this modulated signal is then transmitted with the help of a transmitting antenna to travel through the transmission channel. At the receiver, this modulated signal is received and processed to recover the original message signal. Example: AM , FM radio transmission an TV transmission. In digital communication, the message signal to be transmitted is digital in nature. This means that digital communication involves the transmission information in digital form Example: ASK, FSK, PSK.
Why digital communication is known as digital communication?
because it's digital communication.
Why is digital communication known as digital communication?
In digital communication message is to be transmitted in digital form. That is why it is called so .
What is the objective of channel coding in wireless communication?
The transmission power requirement of a digital transmission scheme can be reduced by the use of an error control codec. This aspect is exploited in the design of most of the modern wireless digital communication systems such as a cellular mobile communication system by: Neha
What are analog and digital modes of operation of an instrument?
In Analog communication, the analog message signal modulates some high carrier frequency inside the transmitter to produce modulated signal.this modulated signal is then transmitted with the help of a transmitting antenna to travel through the transmission channel. At the receiver, this modulated signal is received and processed to recover the original message signal. Example: AM , FM radio transmission an TV transmission. In digital communication, the message signal to be transmitted is digital in nature. This means that digital communication involves the transmission information in digital form Example: ASK, FSK, PSK.
What are the Advantages of analog and digital communications?
Disadvantage of Analog Communication: 1)Analog Communication systems are costlier than digital communication system. 2)Less Security in Analog Communication 3)More prone to noise interference. Advantage of Analog Communication: 1)Transmission bandwidth required is less. 2)No need of synchronization. Advantage of Digital Communication: 1)Digital Communication systems are simpler and cheaper. 2)Using data encryption only permitted user are allowed to detect the transmitted data. 3)Since in Digital Communication, channel coding is used, therefore a large amount of errors may be detected 4)Since transmitted signal is digital in nature,large amount of noise tolerance may be tolerated Disadvantage of Digital Communication: 1)More transmission bandwidth required. 2)Digital Communication needs synchronization in case of synchronous modulation.
What are advantages and disadvantages of digital image processing?
distorted data
What are commonly used communication channels?
Digital (discrete) or analog (continuous) channelBaseband and passband channelTransmission medium, for example a fibre channelMultiplexed channelComputer network virtual channelSimplex communication, duplex communication or half duplex communication channelReturn channelUplink or downlink (upstream or downstream channel)Broadcast channel, unicast channel or multicast channel
