Einhüllende

20 Jan

do8dsp |  January 20th,2011 | Mathematik, Signaltheorie |  No Comments »

Um in einem Empfänger Rechenoperationen zu sparen ist man ja bereit einiges an Approximationen in Kauf zu nehmen. Hier mal eine, die viel Wortbreite sparen kann

\sqrt{I^2 + Q^2} = \begin{cases} \frac{3}{8} \cdot |I| + |Q|, wenn |I| < |Q|\\ \frac{3}{8} \cdot |Q| + |I|, sonst\end{cases}

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This entry was posted on Thursday, January 20th, 2011 at 13:55 and is filed under Mathematik, Signaltheorie. You can follow any responses to this entry through the RSS 2.0 feed. You can skip to the end and leave a response. Pinging is currently not allowed.

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