## Saturday, November 14, 2009

### Periodic and Nonperiodic Signals

A continuous-time signal x ( t ) is said to be periodic with period T if there is a positive

nonzero value of T for which

x(t + T ) = x ( t ) all t

An example of such a signal is given in fig. From Eq it follows

that

x (t+ mT) = x(t)

for all t and any integer m. The fundamental period T, of x ( t ) is the smallest positive

value of T for which Eq holds. Note that this definition does not work for a constant

Subscribe to:
Post Comments (Atom)

## No comments:

## Post a Comment