(→6. a)) |
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Can this system be time-invariant? Explain. | Can this system be time-invariant? Explain. | ||
| − | Answer)System is not Time Invariant. Why, well if you shift the input the two outputs are not the same. | + | Answer)System is not Time Invariant. Why, well if you shift the input, the two outputs are not the same. |
== b)== | == b)== | ||
Assuming that this system is linear, what input X[n] would yield the output Y[n]=u[n-1]? | Assuming that this system is linear, what input X[n] would yield the output Y[n]=u[n-1]? | ||
Answer) X[n] = u[n] | Answer) X[n] = u[n] | ||
Revision as of 16:14, 12 September 2008
6. a)
Can this system be time-invariant? Explain.
Answer)System is not Time Invariant. Why, well if you shift the input, the two outputs are not the same.
b)
Assuming that this system is linear, what input X[n] would yield the output Y[n]=u[n-1]?
Answer) X[n] = u[n]
