Digital instruments sample analog waveforms and operate on the samples with the assurance that the data can be restored to continuous analog form. The sampling theorem states that a signal digitized ...

DSOs (digital oscilloscopes) offer a great many advantages over their analog equivalents but as they say, “There’s no such thing as a free lunch.” Digital scopes sample, digitize, and store waveforms ...

Aliasing can absolutely ruin your images, but it doesn't have to be that way. [Ed note: Some of the following technical illustrations will only display properly if your browser is set to show pictures ...