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Pulse Sampling
See slides.
Impulse Sampling is the ideal theoretical way of sampling a signal. However, in the real world our sample pulses have a duration, which leads to imperfect sampling.
Duty Factor
How much of the time within each sample the sample is held.
$$d= \frac{\tau}{T}, \s 0 \leq d \leq 1$$
$d$: duty factor
$\tau$: “width” of pulses
$T$: Sample Interval - “distance” between samples
Spectrum
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