First-order hold interpolation

1. What is first-order hold circuit?
2. What is the difference between zero-order hold and first-order hold?
3. What is zero-order interpolation?
4. Which order hold function is best suited for signal recovery?

What is first-order hold circuit?

The first-order-hold (FOH) method is a mathematical model to reconstruct the sampled signals that could be done by a conventional digital-to-analog converter (DAC) and an analog circuit which is called an integrator.

What is the difference between zero-order hold and first-order hold?

Whereas the Zero-Order Hold circuit generates a continuous input signal u(t) by holding each sample value u[k] constant over one sample period, a First-Order Hold circuit uses linear interpolation between samples as shown by the model of Figure 20.39 and...

What is zero-order interpolation?

In addition to bandlimited interpolation, a variety of other interpolation procedures are commonly used. One, referred to as a zero-order hold, interpo- lates between sample points by holding each sample value until the next sam- pling instant. This generates a staircase-like approximation to the original sig- nal.

Which order hold function is best suited for signal recovery?

The zero-order hold is a method which is widely used to reconstruct the signals in real time. In the zero-order hold reconstruction method, the continuous signal is reconstructed from its samples by holding the given sample for an interval until the next sample is received.