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A system is said to be "time-invariant" if time shifting any input x(t) (or x[n]) yields the same result as time shifting the response to x(t) (or x[n]) by the same magnitude. | A system is said to be "time-invariant" if time shifting any input x(t) (or x[n]) yields the same result as time shifting the response to x(t) (or x[n]) by the same magnitude. | ||
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+ | ==Definition: Time-Variant System== | ||
+ | A system is said to be "time-variant" if time shifting any input x(t) (or x[n]) does NOT yield the same result as time shifting the response to x(t) (or x[n]) by the same magnitude. |
Latest revision as of 19:26, 14 September 2008
Definition: Time-Invariant System
A system is said to be "time-invariant" if time shifting any input x(t) (or x[n]) yields the same result as time shifting the response to x(t) (or x[n]) by the same magnitude.
Definition: Time-Variant System
A system is said to be "time-variant" if time shifting any input x(t) (or x[n]) does NOT yield the same result as time shifting the response to x(t) (or x[n]) by the same magnitude.