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NHM Living Labs

Wave Sampling and Aliasing Demonstration

This app demonstrates the effects of sampling a sine wave at different frequencies, sample rates, and ADC levels. It also explores aliasing and the role of anti-aliasing filters.

Sampling
Aliasing

Frequency:

Sample Rate:

ADC Levels:

Signal Frequency (Hz):

Sample Rate (Hz):

Anti-aliasing filter:

Filter Order:

Aliasing occurs when the signal frequency exceeds half the sample rate (the Nyquist frequency). An anti-aliasing low-pass filter removes frequencies above the Nyquist limit before sampling.