ABSTRACT
The average power for the current or voltage signal over the interval across a resistor is
The signal is said to be a power signal over a very large interval , if and only if it has finite power; it must satisfy the following
relation:
Using Parseval’s theorem, the energy dissipated by the current or voltage signal across a resistor, over the interval , is
P x t( ) t1 t2,( ) 1Ω
P 1t2 t1– ------------- x t( ) 2 td
∫=
x t( ) T t2 t1–=
0 1T -- x t( ) 2 t ∞<d
E x t( ) 1Ω t1 t2,( )
The signal is said to be an energy signal if and only if it has finite energy,
A signal is said to be periodic with period if and only if
where is an integer.
