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== Causal Systems == | == Causal Systems == | ||
Definition: An LTI system that depends only on the present and past values of the input to the system. A system that is not causal depends on future values of the input to the system. | Definition: An LTI system that depends only on the present and past values of the input to the system. A system that is not causal depends on future values of the input to the system. | ||
| − | Examples: | + | Examples: y(t) = x(t) + t + 2 - Causal because the input values are depending on the present time |
| + | y(t) = \int_t^\infty | ||
Revision as of 17:58, 1 July 2009
Causal Systems
Definition: An LTI system that depends only on the present and past values of the input to the system. A system that is not causal depends on future values of the input to the system.
Examples: y(t) = x(t) + t + 2 - Causal because the input values are depending on the present time
y(t) = \int_t^\infty
