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Nyquist理論 (沒有雜訊)
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D bps = 2 B log 2 K
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Shannon-Hartley Theorem (考慮雜訊)
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C = B log 2 (1 + S/N)
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| C | the channel capacity in bps
| B
| the bandwidth of the channel, in Hertz
| S
| the total signal power over the bandwidth
| N
| the total noise power over the bandwidth
| S/N
| the signal-to-noise ratio(SNR)
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