Welcome to Lecture 19 of the course "Digital Signal Processing" by Prof.David Koilpllai
Full Course: https://study.iitm.ac.in/es/course_pages/EE3101.html

Video Overview
In this lecture you will review the fundamental concepts of discrete time systems to strengthen your understanding for signal processing and systems analysis. We will cover unit sample functions and the classification of sequences into finite and infinite length and causal and non causal signals. You will also learn about the properties of discrete time sinusoids including periodicity in frequency and time. The lecture explains how to represent ramp functions in discrete time and explores operations such as downsampling upsampling time scaling and time reversal with clear examples. The session concludes with practical problems to help you practice and master the steps involved in analyzing and transforming discrete time signals.

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