The Sampling Frequency

[Yue L]

According to the sampling theorem, to capture the main information from a waveform, the sufficient sample-rate should be at twice frequency, or anything larger. But what if it’s larger than twice but not an integer multiple, 2.2 times for example. Can we still capture this frequency well? or we should just consider integer times

[Simon]

Try it for yourself!

Draw a sine wave on some graph paper and then sample it slightly more than 2 times per period. Scan that and post it here, then we can discuss it.

[Author]

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