# Questions tagged [zoh]

the zero-order hold (ZOH) is a linear time-invariant (LTI) model of the piecewise constant output of a digital-to-analog converter (DAC).

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### What is damping ratio and natural frequency of z-domain with real negative pole and undifine region

As ilustrated in controlsystemsacademy shown relation between z-domain and s-damain poles by this image. with contour for natural frequency and damping ratio given by these equations. However there ...
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### How does function c2d in MATLAB manage fractional delay?

the function c2d allows to convert a continuous laplace transfer function to a discrete z-transform transfer function. The base method is the Zero Order Holder. In example: ...
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### ZOH non ideal sampling loss formula

Hello i am trying to calculate the amplitude loss of non ideal sampling. My signals amplitude is 10 at 70 frequency. When we sample it at Fs=400 we have al 0.511 loss as shown in plot bellow. How can ...
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### Construction signal using zero-order-hold

I have a signal $x(t) = \sin(2\pi t)$ with $t \in [0,1]$. The signal $x_s(t)$ is the sampled signal with a sampling period of $T_s = 0.05$. Now I want to compute the reconstructed $x_r(t)$ signal ...
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### Zero Order Hold with polyphase resampler

I'm trying to design a FIR filter(direct form) the coefficient of which will be used to design a polyphase resampler that does Zero-Order Hold resampling. If the direct form impulse response is ...
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### Zero-order interpolation problem

Let $x_c(t)=\cos(\omega_0t)$. This signal is sampled with $\omega_s$, which is greater than the Nyquist rate. It is then interpolated with a zero-order interpolator. The signal obtained is $y_c(t)$. ...
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