Digital Signal
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A Digital Signal is a Signal (Electrical Engineering) that ...
- See: Discrete Space, Analog Signals, Signal (Electrical Engineering), Waveform, Bit Stream, Three-Valued Logic, Polarization (Waves), Optics, Electromagnetism, Magnetization, Magnetic Storage, Digital Electronics.
References
2017
- (Wikipedia, 2017) ⇒ https://en.wikipedia.org/wiki/digital_signal Retrieved:2017-6-15.
- A digital signal is a signal that is constructed from a discrete set of waveforms of a physical quantity so as to represent a sequence of discrete values. [1] A logic signal is a digital signal with only two possible values, and describes an arbitrary bit stream. Other types of digital signals can represent three-valued logic or higher valued logics.Alternatively, the digital signal may be considered to be the sequence of discrete values represented by such a physical quantity.
The physical quantity may be a variable electric current or voltage, the intensity, phase or polarization of an optical or other electromagnetic field, acoustic pressure, the magnetization of a magnetic storage media, etcetera. Digital signals are present in all digital electronics, notably computing equipment and data transmission.
With digital signals, system noise, provided it is not too great, will not affect system operation whereas noise always degrades the operation of analog signals to some degree.
- A digital signal is a signal that is constructed from a discrete set of waveforms of a physical quantity so as to represent a sequence of discrete values. [1] A logic signal is a digital signal with only two possible values, and describes an arbitrary bit stream. Other types of digital signals can represent three-valued logic or higher valued logics.Alternatively, the digital signal may be considered to be the sequence of discrete values represented by such a physical quantity.
- ↑ Digital Design with CPLD Applications and VHDL By Robert K. Dueck: "A digital representation can have only specific discrete values"