Download This File - The Free Information Society
Download This File - The Free Information Society
Download This File - The Free Information Society
You also want an ePaper? Increase the reach of your titles
YUMPU automatically turns print PDFs into web optimized ePapers that Google loves.
∀n, 0 ≤ n ≤ M − 1 : (h [n]) <br />
<br />
π<br />
minh[n] −π<br />
(|Hd (ω) − H (ω) |) 2 <br />
dω<br />
π<br />
minh[n] −π (|Hd (ω) − H (ω) |) 2 <br />
dω = 2π ∞ <br />
n=−∞ (|hd [n] − h [n] |) 2<br />
=<br />
−1 <br />
2π n=−∞ (|hd [n] − h [n] |) 2 + M−1 <br />
n=0 (|hd [n] − h [n] |) 2 + ∞ <br />
n=M (|hd [n] − h [n] |) 2<br />
<br />
∀n, n < 0n ≥ M : (= h [n]) <br />
π<br />
minh[n] −π (|Hd (ω) − H (ω) |) 2 <br />
dω =<br />
M−1 <br />
n=0 (|h [n] − hd [n] |) 2 + ∞ <br />
n=M (|hd [n] |) 2<br />
h [n] <br />
<br />
h [n] = hd [n] w [n]<br />
⎧<br />
⎨ hd [n] 0 ≤ n ≤ M − 1<br />
h [n] =<br />
⎩ 0 <br />
⎧<br />
⎨ 1 0 ≤ n (M − 1)<br />
w [n] =<br />
⎩ 0 <br />
−1 <br />
h=−∞ (|hd [n] |) 2<br />
L2 <br />
<br />
<br />
L∞<br />
<br />
<br />
<br />
H (ω) = Hd (ω) ∗ W (ω)<br />
∀n0 ≤ n ≤ M − 1h [n] = hd [n] w [n]<br />
<br />
<br />
<br />
<br />
<br />
+