*I do not see the point of "copying and pasting" the content of other websites (e.g., wikipedia) on Rhea. If you are interested in writing a page about sampling, why don't you actually write it yourself? -pm
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*Is the image you posted below is copyrighted?
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Sampling is the basis of A/D conversion. A continuous time signal(analog) is consisted of infinite data points and it is impossible to process infinite data points. So, A/D converter sample enough points to represent the continuous signal and form discrete signal(Digital).
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Very simple model for sampling
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References
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^ Walt Kester (2003). Mixed-signal and DSP design techniques. Newnes. p. 20. ISBN 9780750676113.
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^ Hiroshi Harada, Ramjee Prasad (2002). Simulation and Software Radio for Mobile Communications. Artech House. ISBN 1580530443.
