Design of Digital Filters - Electrical Engineering and ...

Causal (for now) Poles inside unit circle for stability 8.1.1 Causality We will focus on designing causal digital lters, since those can be implemented in real time. Noncausal lter design (e.g., for off-line applications) is much easier and many of the same principles apply anyway. An LTI system is causal iff

  Digital, Casual, Causal digital