| Line 2: | Line 2: | ||
Valid? ~AJFunche | 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 <math>2\pi</math>. Second, the amplitude of the FT changes when sampling. Third, something called "aliasing" might occur. --[[User:Mboutin|Mboutin]] 08:56, 7 September 2010 (UTC) | + | ::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 <math>2\pi</math>. 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.--[[User:Mboutin|Mboutin]] 08:56, 7 September 2010 (UTC) |
| + | ---- | ||
| + | [[Hw2ECE38F10|Back to HW2 ECE438 Fall 2010]] | ||
Revision as of 05:00, 7 September 2010
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)
