| Line 4: | Line 4: | ||
Eg: | Eg: | ||
<pre> Y(t) = X(t) + X(t-1){ memoryless} | <pre> Y(t) = X(t) + X(t-1){ memoryless} | ||
| − | Y(t) = X(t)+X(t-1) { with memory}.<pre> | + | Y(t) = X(t)+X(t-1) { with memory}.</pre> |
Revision as of 07:47, 18 September 2008
Memory less system
A system is memoryless if for any $ t\in \mathbb{R} $ only on the input at $ t_0, $
Eg:
Y(t) = X(t) + X(t-1){ memoryless}
Y(t) = X(t)+X(t-1) { with memory}.
Invertible systems
A system is invertible if distinct inputs yield distinct outputs.
Eg:
Y(t) = 2x(t) + 3
