Analog and Digital Signal by: M. Ilham Akbar 125060300111049.
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Transcript of Analog and Digital Signal by: M. Ilham Akbar 125060300111049.
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Analog and Digital Signal
by:M. Ilham Akbar
125060300111049
![Page 2: Analog and Digital Signal by: M. Ilham Akbar 125060300111049.](https://reader036.fdocuments.us/reader036/viewer/2022082621/5a4d1b7a7f8b9ab0599b8948/html5/thumbnails/2.jpg)
An analog signal is any continous signal for which the time varying feature (variable) of the signal is a representation of some other time varying quantity.
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Analog Signal Form
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Standard Unit
Speed >> hertz (Hz) in second
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Amplifier
• To Amplify (message & noise)
Analog wave called baud.
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Digital signals must have a finite set of possible values. The number of values in the set can be anywhere between two and a-very-large-number-that’s-not-infinity. Most commonly digital signals will be one of two values – like either (0V and 5V) or (0 and 1). Timing graphs of these signals look like square waves.
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Digital Signal Form
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Digital Signal Processing
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Analog to Digital Conversion
Analog signal limitation >> susceptible to noiseDigital signal superiority>> stable quality
With the result that
Combination of Analog and Digital signal
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Analog to Digital Conversion
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An analog to digital converter converts a continuous physical quantity (usually voltage) to a digital number that represents the quantity's amplitude (0 and 1).
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ADC Process
Sampling Quintizing Coding Multiplexing
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• Continous• Good for low traffic comunication• High possibility to error• Hard to fix an error• Susceptible to noise• Small information capacity• Hard to modificate the signal• Frequency-based concept• A lot of bandwith
• Discrete• Good for high traffic
communication• Small possibility to error• Easy to fix an error• Resistant to noise• Bigger information capacity• Easy to modificate the signal• Time-based concept• Less bandwith
Analog