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What is noise immunity in digital electronics?
Noise immunity is the ability of a system to perform even when there is noise present. The higher the level of noise a system can still operate under, the higher the noise immunity.
In a communication system noise is most likely to affet the signal at?
channel
Why the received signal in analog communication is distorted by the channel noise than that of digital communication?
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
Is noise amplified when a digital receiver is used?
Noise can be amplified in a digital receiver due to the quantization process, where continuous signals are converted into discrete digital values. This can introduce quantization noise, which, although typically lower than analog noise, may become more significant in low-signal environments. Additionally, any noise present in the input signal can be exacerbated during the digital processing stages, particularly if the system is not properly designed to handle it. Overall, while digital receivers can offer advantages like improved signal integrity, they are not immune to noise amplification.
What is hybrid modulation?
—Analog digital hybrid modulation seeks the ways to eliminate the incoherent quantization noise component in digital communication, instead of conveniently making it minimal.
What are the advantages and disadvantages of noise in a communication system?
Harmfull Effect: the harmfull effect of noise in a communication system is the it weeks the strength of the massage single.
Where does noise enters in a communication system?
Noise may interfere with signal at ant point in a communication system.The noise has its greatest effect on the signal in the channel.
What are the disadvantages of analog communication?
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.
Why the measure of performance in analog communication system is signal to noise ratio while in digital communication system is probability error?
it is mostly a matter of what is easiest to define & measure in each context.
What is noise in communication system and the source of the noise?
noise is an undesired and unwanted sound or singnal in communication
What colour of noise is harmful for communication system?
white noise
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 is noise immunity in digital electronics?
Noise immunity is the ability of a system to perform even when there is noise present. The higher the level of noise a system can still operate under, the higher the noise immunity.
In a communication system noise is most likely to get into the system?
in the channel only
What is noise margin and noise immunity?
Noise margin refers to the difference between the actual voltage levels of a digital signal and the threshold levels required for reliable recognition of logic states, providing a buffer against noise interference. Noise immunity, on the other hand, is the ability of a system to withstand external noise without affecting its performance or accuracy. Together, they are crucial in ensuring reliable digital communication and signal integrity in electronic circuits, especially in environments with potential electromagnetic interference. High noise margins and strong noise immunity enhance a system's robustness against disturbances.
Examples of internal noise in communication?
Internal noise is due to the thermal agitation of the atoms in the electrical components of communication system.
Symbol amplitude?
Symbol amplitude refers to the magnitude or strength of a symbol in a communication system. It is the intensity of the signal representing a specific symbol, which can impact the signal-to-noise ratio and the quality of the communication. In digital communication, symbol amplitude is crucial for accurate symbol detection and decoding.
