ExercÃcios Resolvidos 2 - DECOM - Unicamp
ExercÃcios Resolvidos 2 - DECOM - Unicamp
ExercÃcios Resolvidos 2 - DECOM - Unicamp
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EE-881 – Princípios de Comunicações I<br />
<strong>DECOM</strong>-FEEC-UNICAMP<br />
a 0<br />
= 2 f m<br />
1 2 f m<br />
1 3 f<br />
∫ v( t)dt<br />
= 2 f "<br />
m # A c<br />
+ 2A c<br />
cos( 2π f m<br />
t $<br />
∫<br />
m<br />
)% dt<br />
1 2 f<br />
+ 2 f "<br />
m ∫<br />
m<br />
# −A c<br />
− 2A c<br />
cos 2π f m<br />
t<br />
0<br />
0<br />
1 3 f m<br />
( )<br />
$<br />
% dt<br />
= A c<br />
3 + 4A c<br />
π sen '<br />
)<br />
2π ( 3<br />
*<br />
,<br />
+<br />
a n<br />
= 2 f m<br />
∫<br />
∫<br />
1 2 f m<br />
0<br />
v( t)cos( 2πnf m<br />
t)dt<br />
( )<br />
1 3 f m<br />
= 2 f "<br />
m # A c<br />
+ 2A c<br />
cos 2π f m<br />
t<br />
∫<br />
0<br />
( )<br />
1 2 f m<br />
+2 f "<br />
m # −A c<br />
− 2A c<br />
cos 2π f m<br />
t<br />
1 3 f m<br />
$<br />
% cos ( 2πnf t m )dt<br />
$<br />
% cos ( 2πnf t m )dt<br />
( )<br />
= A " '<br />
c<br />
2πn * $ "<br />
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' 2π n +1<br />
-2sen)<br />
,− sen( πn)<br />
.+ c -2sen nπ # ( 3 + % ( n +1)π - )<br />
(<br />
3<br />
#<br />
( )<br />
"<br />
A<br />
' 2π n −1<br />
+ c -2sen ( n −1)π - )<br />
(<br />
3<br />
#<br />
*<br />
,<br />
+<br />
( )<br />
− sen π ( n −1)<br />
$<br />
.<br />
.<br />
%<br />
*<br />
,<br />
+<br />
( )<br />
− sen π ( n +1)<br />
$<br />
.<br />
. +<br />
%