W1_L3: Continuous-time & discrete-time signals
Welcome to Week 1 Lecture 3 of the course "Signals and Systems" by Prof. Lakshmi Narasimhan Theagarajan.
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Video Overview
This lecture introduces the fundamental classification of signals: continuous-time and discrete-time. We explore the key differences between these signal types, focusing on the nature of the independent variable time. Learn why the concept of next is crucial in distinguishing discrete-time signals from their continuous counterparts. We also discuss the process of converting between continuous and discrete signals through sampling and interpolation, touching upon the relationship between analog and digital signals, and the importance of digital signals for computer processing. Furthermore, the lecture will describe analog to digital conversion and an end-to-end setup. We will understand why digital signals are necessary and the process of analog to digital conversion with digital signal processing in computers.
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