Resumo

JOVANOVIC DOLECEK, Gordana  e  FERNANDEZ-VAZQUEZ, Alfonso. Understanding Discrete Time Convolution: A Demo Program Approach. Comp. y Sist. [online]. 2021, vol.25, n.2, pp.361-367.  Epub 11-Out-2021. ISSN 2007-9737.  https://doi.org/10.13053/cys-25-2-3224.

This paper presents a novel approach to teach discrete-time convolution, using a MATLAB-based demo program. The emphasis of the program is on understanding the fundamental conditions necessary to apply the convolution operation rather than only showing its mathematical form and steps to perform it, as in traditional approach. The presented program complements traditional in-classroom lecturing and can be helpful in better understanding of this important operation. As expected, students highly evaluated the usefulness of this program in the teaching-learning process. Course description and evaluations of the demo program are also included.

Palavras-chave : Discrete-time convolution; linear-time invariant system; shifting property; improving classroom teaching; interactive learning.