Signals in Natural Domain
Chapter 2 : Simple Operations and properties of Sequences
Some Properties of signals
Energy of a Signal:
The total energy of a signal {x[n]} is defined by
A signal is referred to as an energy signal, if and only if the total energy of the signal E
x
is finite.
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![$\displaystyle E_x=\sum\limits_{n=-\infty}^{\infty}\vert x[n]\vert^2$](images/img36.png)
