What is signal?

  • (adj): Notably out of the ordinary.
    Example: "The year saw one signal triumph for the Labour party"
    See also — Additional definitions below

Some articles on signal, signals:

Signal - Other
... Signalling (economics) in economic theory Signal (bridge), partnership card games Signals in legal citations Kent (game) a card game also known as Signal ...
Permissive Action Link - Features - Critical Signal Detection
... Nuclear weapons will only respond to a specific arming signal ... This is passed to the weapon by a unique signal generator located outside the weapon ...
Index Of Electronics Articles - S
... point – Security management – Self-clocking signal – Self-synchronizing code – Semiautomatic switching system – Semiconductor device – Semiconductor – Sensitivity – Sensor ...
Nyquist Frequency
... is half the sampling frequency of a discrete signal processing system ... frequency that satisfies the Nyquist sampling criterion for a given signal or family of signals ... This lower bound is twice the bandwidth or maximum component frequency of the signal ...
Zero-order Hold
... The zero-order hold (ZOH) is a mathematical model of the practical signal reconstruction done by a conventional digital-to-analog converter (DAC) ... That is, it describes the effect of converting a discrete-time signal to a continuous-time signal by holding each sample value for one sample interval ...

More definitions of "signal":

  • (noun): An electric quantity (voltage or current or field strength) whose modulation represents coded information about the source from which it comes.
  • (verb): Be a signal for or a symptom of.
    Example: "The economic indicators signal that the euro is undervalued"
    Synonyms: bespeak, betoken, indicate, point
  • (noun): Any communication that encodes a message.
    Synonyms: signaling, sign
  • (noun): Any incitement to action.
    Example: "He awaited the signal to start"; "the victory was a signal for wild celebration"

Famous quotes containing the word signal:

    Perhaps having built a barricade when you’re sixteen provides you with a sort of safety rail. If you’ve once taken part in building one, even inadvertently, doesn’t its usually latent image reappear like a warning signal whenever you’re tempted to join the police, or support any manifestation of Law and Order?
    Jean Genet (1910–1986)

    By day thy warning ringing bell to sound its notes,
    By night thy silent signal lamps to swing.
    Walt Whitman (1819–1892)

    Certainly the effort to remain unchanged, young, when the body gives so impressive a signal of change as the menopause, is gallant; but it is a stupid, self-sacrificial gallantry, better befitting a boy of twenty than a woman of forty-five or fifty. Let the athletes die young and laurel-crowned. Let the soldiers earn the Purple Hearts. Let women die old, white-crowned, with human hearts.
    Ursula K. Le Guin (b. 1929)