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Mechatronics Zone
Undersampling Shifts Signal Bandwidths
10/31/2012

The effect of aliasing 'folds' the frequency spectrum at integer multiples of fs / 2 and combines the signals within the frequency range 0 to fs / 2 Hz.
The effect of aliasing “folds” the frequency spectrum at integer multiples of fs / 2 and combines the signals within the frequency range 0 to fs / 2 Hz.

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ttemple
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Platinum
Whoda thunk?
ttemple   11/1/2012 3:17:07 PM
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That is one of those things you look at and say "who on earth figured that out? (and why?).

 

Jon Titus
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Blogger
Re: Whoda thunk?
Jon Titus   11/1/2012 5:04:44 PM
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Perhaps it was tackled for the sheer joy of watching the math unfold an effect of discrete-time sampled data.

MKsteel
User Rank
Iron
Re: Whoda thunk?
MKsteel   11/2/2012 8:39:45 AM
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My guess is that some university guy was too ornery to buy an ADC that had a higher sample rate or his department chair was too cheap/too mad at him to authorize it. So necessity probably mothered this discovery.

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