A
time-invariant (TIV)
system is a system whose output does not depend explicitly on time. Such systems are regarded as a class of systems in the field of
system analysis. Lack of time dependence is captured in the following mathematical property of such a system:
- If the input signal
produces an output
then any time shifted input,
, results in a time-shifted output ![](http://info.babylon.com/onlinebox.cgi?rt=GetFile&uri=!!ARV6FUJ2JP&type=0&index=754)