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Results tagged with information-theory
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Why is bandwidth always limited in a real (physical) channel?
Information bandwidth is dependent on signal to noise ratios. At absolute zero, quantum level signal quantization and quantum noise will limit the lower bound on the noise floor. At higher temperatu …
- 35.7k
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What are the fundamental reasons that suggest us to minimise transmission power for energy-e...
Note that there are a host of practical secondary effects of increasing transmission power that do not scale with potentially less required transmission time, such as: battery impedance, voltage conve …
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0
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Proof that DFT does not require more than N points
Note that f() can only be sampled down to N points per period if f() is bandlimited to include only spectrum below t_period/(2*N) in frequency. And a signal exactly periodic in N, with no frequency c …
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