Control theory | Signal processing

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. It has several applications in electrical communication. (Wikipedia).

Zero-order hold
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Nyquist–Shannon sampling theorem | Low-pass filter | Signal reconstruction | Dirac delta function | Discretization | First-order hold | Transfer function | Whittaker–Shannon interpolation formula | Roll-off | Sinc function | Rectangular function | Impulse response | Laplace transform | Filter (signal processing)