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So, my understanding of this material is that X(f),X1(w) mainly differ on their X axis scaling, and same sort of thing X1 and X2? | So, my understanding of this material is that X(f),X1(w) mainly differ on their X axis scaling, and same sort of thing X1 and X2? | ||
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[[Hw2ECE38F10|Back to HW2 ECE438 Fall 2010]] | [[Hw2ECE38F10|Back to HW2 ECE438 Fall 2010]] | ||
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| + | [[2010_Fall_ECE_438_Boutin|Back to ECE438 Fall 2010 Prof. Boutin]] | ||
Revision as of 05:02, 7 September 2010
HW2 Discussion, ECE438, Fall 2010, Prof. Boutin
So, my understanding of this material is that X(f),X1(w) mainly differ on their X axis scaling, and same sort of thing X1 and X2?
Valid? ~AJFunche
- It's a bit more complicated than a mere rescaling of the frequency axis. First, one must not forget that the DTFT is ALWAYS periodic with period $ 2\pi $. Second, the amplitude of the FT changes when sampling. Third, something called "aliasing" might occur. Can other students please try clarify this? I will step in if I notice obvious misconceptions/mistakes.--Mboutin 08:56, 7 September 2010 (UTC)
