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Questions and Answers
What is the main purpose of digital line coding?
What is the main purpose of digital line coding?
- Converting binary data to a digital signal for transmission (correct)
- Converting digital data to binary data for storage
- Converting analog data to a digital signal for storage
- Converting digital data to an analog signal for transmission
What property must the transmission bandwidth have for a line-code?
What property must the transmission bandwidth have for a line-code?
- It must be inversely proportional to the probability of error
- It must be as small as possible (correct)
- It must be directly proportional to the power efficiency
- It must be as large as possible
What is a key requirement for the transmitted power in line-coding?
What is a key requirement for the transmitted power in line-coding?
- It should be as small as possible for a given bandwidth and specified error probability (correct)
- It should be independent of the error probability
- It should be maximized to ensure error-free transmission
- It should be directly proportional to the bandwidth
What capability should line coding possess in terms of error detection and correction?
What capability should line coding possess in terms of error detection and correction?
What happens in a bipolar case when a signal error occurs?
What happens in a bipolar case when a signal error occurs?
Flashcards
Digital Line Coding Purpose
Digital Line Coding Purpose
Converting binary data to a digital signal for transmission over a communication channel.
Line Coding Bandwidth
Line Coding Bandwidth
The transmission bandwidth must be minimized for efficient data transmission.
Line Coding Power
Line Coding Power
Transmitted power should be kept as low as possible for a given bandwidth and error rate to optimize efficiency and reduce interference.
Error Detection/Correction
Error Detection/Correction
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Bipolar Signal Error
Bipolar Signal Error
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Study Notes
Digital Line Coding
- The main purpose of digital line coding is to convert the digital data into a signal that can be transmitted over a communication channel.
Transmission Bandwidth
- The transmission bandwidth must be at least twice the maximum frequency component of the signal to avoid signal distortion.
Transmitted Power
- A key requirement for the transmitted power in line-coding is that it should be maintained at a minimum level to reduce the effects of attenuation and noise.
Error Detection and Correction
- Line coding should possess the capability of error detection and correction to ensure reliable data transmission.
Bipolar Case
- In a bipolar case, when a signal error occurs, the signal switches to the opposite polarity to indicate the error, providing a way to detect errors.
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