Complex Sinusoids Archives

A Visualization of Causality and Stability in z-Transform

Most of the books and resources explain the z-Transform as a mathematical concept rather than a signal processing idea. Today

June 18, 2020 On a cold morning in August 2015, I narrowly missed a train to my office in Melbourne

Children usually ask questions like “How many hours have passed?” And they have no idea about the start time to

Although this article explains the concepts in terms of mathematical constants e and j as well as integration, my book

A wireless signal from one device to another travels through the use of electromagnetic waves propagated by an antenna. Electromagnetic