(New page: Category:2010 Fall ECE 438 Boutin ---- == Quiz Questions Pool for Week 10 == ---- Q1. * Solution. ---- Q2. * Solution. --...) |
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* [[ECE438_Week10_Quiz_Q1sol|Solution]]. | * [[ECE438_Week10_Quiz_Q1sol|Solution]]. | ||
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| − | Q2. | + | Q2. When we have a LTI system, the impulse response <math>h[n]</math> must be real |
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| + | in order for <math>y[n]</math> to be real whenever <math>x[n]</math> is real. | ||
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| + | The condition for <math>h[n]</math> to be real is | ||
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| + | <math> h[n]=h^{\ast}[n] </math> | ||
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| + | Then, what is the condition of the frequency response <math>H(w)</math> for <math>h[n]</math> to be real? | ||
| + | |||
| + | (Hint: Apply DTFT to the above equation) | ||
* [[ECE438_Week10_Quiz_Q2sol|Solution]]. | * [[ECE438_Week10_Quiz_Q2sol|Solution]]. | ||
Revision as of 17:41, 26 October 2010
Quiz Questions Pool for Week 10
Q1.
Q2. When we have a LTI system, the impulse response $ h[n] $ must be real
in order for $ y[n] $ to be real whenever $ x[n] $ is real.
The condition for $ h[n] $ to be real is
$ h[n]=h^{\ast}[n] $
Then, what is the condition of the frequency response $ H(w) $ for $ h[n] $ to be real?
(Hint: Apply DTFT to the above equation)
Q3.
Q4.
Q5.
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