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ULTRA WIDE BAND - Martial COULON - Enseeiht

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Ultra Wide Band<br />

Principes de transmission<br />

Emetteurs I-UWB<br />

Transmissions I-UWB<br />

Formes de l’impulsion<br />

Formes les plus fréquentes : gaussienne et ses dérivées<br />

◮ Impulsion gaussienne :<br />

durée du pulse = 2πσ<br />

◮ Dérivée première de gaussienne :<br />

◮ Dérivée seconde de gaussienne :<br />

p(t) = αe −(t−µ)2 /2σ 2<br />

p(t) = 32k6<br />

π te−(kt)2<br />

2 1/4<br />

32k 1 2<br />

p(t) =<br />

− 2(kt)<br />

9π<br />

e −(kt)2<br />

19/ 108

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