Aliasing and the Sampling Theorem

The aim of the Aliasing App is to help advanced students of digital signal processing to acquire a deeper understanding of the Nyquist/Shannon sampling theorem and the distorsion called aliasing. This App runs on iOS devices (instructors may connect an external monitor).

★★★★★ Get this if you like to understand the Shannon/Nyquist Sampling Theorem! Download from App Store.

The aliasing App has several interactive tabs. You will learn that the sampled signal has a periodic spectrum...

The digital to analog reconstruction is obtained by low pass filtering the periodic spectrum.

In reality, signals are composed, but Aliasing is still easy to understand.

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