Aliasing is thankfully becoming a less frequent problem due to improved instrument designs. Users should still be aware of it ...

Previous articles in Planet Analog make mention of the “aliasing effect.” Most EEs agree in the importance of the aliasing effect as a noise source and take for granted that anti-aliasing filters are ...

Suppose you take a few measurements of a time-varying signal. Let’s say for concreteness that you have a microcontroller that reads some voltage 100 times per second. Collecting a bunch of data points ...

The 3D games we play and love are all made up of thousands, if not millions, of colored straight lines and other edges. And because of the way that these appear on your screen, they can often look ...

Sampling a signal causes the original signal spectrum (blue) to create sum (purple) and difference (red) frequencies around the sampling frequency, fS. When the difference signals fall into the ...