Capitolul 1: Bancuri de filtre
Capitolul 1: Bancuri de filtre
Capitolul 1: Bancuri de filtre
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PAS cap. 1: <strong>Bancuri</strong> <strong>de</strong> <strong>filtre</strong> – p. 23/75<br />
BF cu două canale—reprezentare polifază<br />
• Se obţine schema<br />
✓✏<br />
x ✲ ↓2 ✲<br />
❄ ✒✑<br />
z −1 ✓✏<br />
✲ ↓2 ✲<br />
✒✑<br />
A(z)<br />
y 0<br />
y 1<br />
✲<br />
✲<br />
S(z)<br />
✓✏<br />
✲ ↑2<br />
✒✑❄<br />
z −1 ✓✏<br />
✲ ↑2 ✲❄<br />
✒✑<br />
˜x<br />
• Matricea polifază <strong>de</strong> analiză este<br />
[<br />
H 00 (z) H 01 (z)<br />
A(z) =<br />
H 10 (z) H 11 (z)<br />
• Matricea polifază <strong>de</strong> sinteză<br />
[<br />
F 00 (z) F 01 (z)<br />
S(z) =<br />
F 10 (z) F 11 (z)<br />
]<br />
]