Signals and Systems II: Part II: Interpolation, decimation, complex signals, and Nyquist signaling

This six-part series is a minicourse, focused on system concepts, that is aimed at the gap between Signals and Systems and the usual first digital signal processing course. Part I discussed motivation, philosophy, and notation. This second article in the series focuses on oversampling in D/A conversion and the basics of decimation, complex signals, and Nyquist signaling.