Nyquist Criteria – Maximum Data Rate of a Noiseless Channel

Nyquist derived an expression for the maximum data rate of a noiseless channel having a finite bandwidth. Nyquist proved that any signal can be reconstructed from its discrete form if the sampling is below the maximum data rate for the channel.

Maximum Data rate= 2H log2N bits/sec
Where H = Bandwidth of the channel
N= Number of levels in the quantized sample.

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