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<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} | Y(t) = X(t)+X(t-1) { with memory} | ||
| + | |||
| + | |||
| + | '''Invertible systems''' | ||
| + | |||
| + | A system is invertible if distinct inputs yield distinct outputs. | ||
| + | |||
| + | Eg: | ||
| + | <pre> Y(t) = 2x(t) + 3 | ||
Revision as of 07:46, 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:
<pre> Y(t) = 2x(t) + 3
