ULTRA WIDE BAND - Martial COULON - Enseeiht
ULTRA WIDE BAND - Martial COULON - Enseeiht
ULTRA WIDE BAND - Martial COULON - Enseeiht
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Ultra Wide Band<br />
Principes de transmission<br />
Emetteurs I-UWB<br />
Signal modulé transmis (1 pulse par trame)<br />
s(t) = <br />
Epajcjp(t − jTf)<br />
j<br />
= <br />
Epdjp(t − jTf)<br />
remarque : pour DS-SS “classique”, p(t) rectangulaire sur [0; Tf].<br />
Alternative (Nh pulses par trame) : code (cj)j=0,...,Nh<br />
s(t) = <br />
j<br />
= <br />
j<br />
j<br />
Epaj<br />
Ep<br />
N h−1<br />
i=0<br />
N h−1<br />
i=0<br />
cip(t − jTf − iTc)<br />
djp(t − jTf − iTc)<br />
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