john12ax7
Well-known member
With a properly band-limited signal sampled at more than twice the bandwidth, you can reconstruct EXACTLY the band-limited signal again. We'll ignore amplitude quantisation here but remind people that quantising in time is not exactly analogous to quantising in amplitude.
Why acknowledge one source of error but not the other? There is no real world implementation that produces exact results. You will get errors due to quantization, you will get errors due to filtering.
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