ece306-4 - 1 && ECE 306 Discrete-Time Signals and...

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Unformatted text preview: 1 && ECE 306 Discrete-Time Signals and Systems & && && Discrete-Time Signals A Discrete-time signal is a function of an independent integer variable n . The signal is not defined for non- integer values of n . We can represent a discrete-time signal different ways; 1. Graphical representation ( ) x n ( ) x n Such as 2 && Discrete-Time Signals 2. Functional representation ( ) 1, for 1,3 4, for 2 0, elsewhere x n n n = = & = 3. Tabular representation 0 0 0 1 4 1 0 0 -2 -1 0 1 2 3 4 5 4. Sequential representation ( ) {...0,0,1,4,1,1,0,0,...} x n = The time origin (n=0) is indicated by the symbol . Such as Such as Such as && Some Elementary Discrete-Time Signals 1. The unit sample sequence : The unit sample sequence is often referred to as a discrete-time impulse or an impulse....
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This note was uploaded on 03/11/2008 for the course ECE 306 taught by Professor Aliyazicioglu during the Winter '08 term at Cal Poly Pomona.

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ece306-4 - 1 && ECE 306 Discrete-Time Signals and...

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