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.
Read more about Zero-order Hold: Time-domain Model, Frequency-domain Model
Famous quotes containing the word hold:
“What right have you to hold up this obstacle to my understanding you, to your understanding me! You did not invent it; it was imposed on you. Examine your authority. Even Christ, we fear, had his scheme, his conformity to tradition, which slightly vitiates his teaching. He had not swallowed all formulas. He preached some mere doctrines.”
—Henry David Thoreau (1817–1862)