Sampling Theorem -- Aliasing

The sampling theorem consists of two parts: the first is sampling and aliasing and the second is reconstruction. Taken together, the sampling theorem is the most important concept in digital signal processing: it is why we can use digital computers to analyze continuous time signals.

I wrote up a quick IPython script demonstrating aliasing. Basically, we have a series of plots showing two continuous time sinusoids and the resulting samples. The digital frequencies are the same.

In later work, we will demonstrate reconstruction.

Here are the files: IPynb, HTML