Comparison to oversampled case

Sampling frequency 

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Continuous-time signal 

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CTFT of infinite-length x(t) 

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CTFT of finite-length x(t) 

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[Graphics:../Images/index_gr_150.gif]
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Sampled waveform (finite-length) 

[Graphics:../Images/index_gr_153.gif]

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CTFT of infinite-length sampled signal 

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DTFT of finite-length sampled signal 

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[Graphics:../Images/index_gr_161.gif]

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Show all 

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Converted by Mathematica      March 25, 2003