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430<br />

Random Processes and Spectral Analysis Chap. 6<br />

x (t)<br />

T b<br />

1<br />

t<br />

(a) Polar Signal<br />

f(t)<br />

T b<br />

t<br />

(b) Signaling Pulse Shape<br />

1<br />

T b<br />

p x (f)<br />

1.0<br />

0.5<br />

(<br />

2<br />

sin pf T<br />

p b<br />

x (f)=T b<br />

pf T b<br />

(<br />

<br />

3<br />

T b<br />

<br />

2<br />

T b<br />

<br />

1<br />

T b<br />

0<br />

1<br />

T b<br />

2<br />

T b<br />

3<br />

T b<br />

f<br />

(c) Power Spectral Density of a Polar Signal<br />

Figure 6–5<br />

Random polar signal and its PSD.<br />

Thus,<br />

a n a m = e 1, n = m<br />

0, n Z m<br />

(6–59)

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