Küpfmüller's uncertainty principle

Template:Use dmy dates Template:Improve Küpfmüller's uncertainty principle by Karl Küpfmüller in the year 1924 states that the relation of the rise time of a bandlimited signal to its bandwidth is a constant.

$\mathrm{\Delta }f\mathrm{\Delta }t\ge k$

with $k$ either $1$ or $\frac{1}{2}$

See also

• Heisenberg's uncertainty principle
• Nyquist theorem

Further reading

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