If we want to take samples of some analog waveform, as in doing analog to digital conversions at some particular conversion rate, there is an absolute lower limit to the rate of doing conversions ...

In nature, most of the signals we measure (sound, light, etc.) are defined over continuous domains (time, space, etc.). In order to process them with computers, we need to transform the continuous ...

In order to store this continuous image on a computer, we need to sample it and convert it into a discrete image, $\ell [ n,m ]$. @fig-aliasing (b) shows the resulting sampled image when the sampling ...

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 ...

Abstract: The problem of sampling continuous-time spectrally correlated (SC) processes is addressed. SC processes have Loève bifrequency spectrum with spectral masses concentrated on a countable set ...

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 ...