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Module 1 : Signals in Natural Domain

Lecture 5 : Discrete-Time Convolution

Objectives
In this lecture you will learn the following
	We shall look into the properties of systems satisfying both linearity and shift invariance i.e. LSI (Linear shift invariant) systems.
	We shall define the term "Impulse response" in context to LSI systems.
	We shall learn Convolution , an operation which helps us find the output of the LTI system given the impulse response and the input signal. [NOTE:- In the following sections we will be using LSI and LTI interchangeably.LTI is infact a special case of LSI. In LTI we consider shifts in time.]