(→6.(A)) |
(→6.(A)) |
||
| Line 3: | Line 3: | ||
This is not time-invariant.<br> | This is not time-invariant.<br> | ||
| − | 1. input(<math>/delta[n-k]</math>) -> system -> time delay -> output : <math>(k+1)^2\delta[n-(k+2)]</math><br> | + | 1. input(<math>/delta[n-k]</math>) -> system -> time delay (1) -> output : <math>(k+1)^2\delta[n-(k+2)]</math><br> |
| − | 2. input(<math>/delta[n-k]</math>) -> time delay -> system -> output : <math>(k+2)^2\delta[n-(k+2)]</math><br> | + | 2. input(<math>/delta[n-k]</math>) -> time delay (1) -> system -> output : <math>(k+2)^2\delta[n-(k+2)]</math><br> |
The output signals are different each other. So this is not time-invariant. | The output signals are different each other. So this is not time-invariant. | ||
Revision as of 17:46, 10 September 2008
6.(A)
This is not time-invariant.
1. input($ /delta[n-k] $) -> system -> time delay (1) -> output : $ (k+1)^2\delta[n-(k+2)] $
2. input($ /delta[n-k] $) -> time delay (1) -> system -> output : $ (k+2)^2\delta[n-(k+2)] $
The output signals are different each other. So this is not time-invariant.
