 | John H. Blakelock - 1991 - 668 lapas
...theorem of sampling states9.10 that in order to reconstruct the continuous signal it must be sampled at a rate that is at least twice the highest frequency of the signal being sampled. lf w, is the sampling angular frequency, then T = 2ir/w,' and substituting... | |
 | Robert Dixon - 1998 - 496 lapas
...when converted back to an analog output signal. To do this, it is necessary to sample the analog input signal at a rate that is at least twice the highest frequency in the bandwidth of the signal to be recovered. (This is a restatement of the Shannon/Nyquist sampling... | |
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This involves sampling the signal at a rate that is at least twice the highest frequency present and converting the sample values to digital words. 