Linear Time-Invariant (LTI) 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

One question I am frequently asked is regarding the definition of Fourier Transform. A continuous-time Fourier Transform for time domain

We learned in the concept of frequency that most signals of practical interest can be considered as a sum of

In wireless communications and other applications of digital signal processing, we often want to modify a generated or acquired signal.

Understanding convolution is the biggest test DSP learners face. After knowing about what a system is, its types and its