I
7-23
1~0
r3>T::
2,00
–
~o
0
,,2
LJco
H’r:
~
\~~-\-
b;+
~+~
~o.~
0.. t
to\M.O
dO’.
-4
d
oJ!
()
:G
~
.:r,
t(}.M.
b~
,s
(\~bl
e.
(-
II)
(S
;:
~
::.
2
~
a0 b
~
\-~
Js
~
Co
305
INSTRUCTOR SOLUTIONS MANUAL
(United States Edition)
Digital & Analog Comm. Systems
8th Edition, L. W. Couch, II
306
INSTRUCTOR SOLUTIONS MANUAL
(United States Edition)
Digital & Analog Comm. Systems
8th Edition, L. W. Couch, II
(
b.)
eM:: ± P
~
: J- f {{A
e.-
d
~
tc\’
;S
LN\lM-
~4t-e.J-
e.M.t()ded
G:
=-
0
ev~
J’f
l(!)
~
~
(1\/\.
tt>
·
307
INSTRUCTOR SOLUTIONS MANUAL
(United States Edition)
Digital & Analog Comm. Systems
8th Edition, L. W. Couch, II
I
7-28
I(a.’)
Le
f
Be
=-
0
aMd
{,:.
tJ~
-w,
Eel
:::
~
0 r [ Ac
()
t.,
W f t –A
~
<:>
S (
vJ,
t
-f-
(l:)
]
~
d t
CS::w+~
)2-
o I
=0
\
I
A~[cos(wo-~)t
_
cos(wo+~)t
cit
Cb.)
U.i~~?-~Jq{t;)
==
Q
[C·
J+
o
.1Jry)f£ ]
=-
Q~
1.21
(*)
)
0.1
…
‘-
,….
I.r
-,….
\
–
–~
r-
ILVlV
~
I-
I
t–
–
—
–
……
”
g
o 2 4 6
10
12 14
x
Eb/No.
dB->
gOB
INSTRUCTOR SOLUTIONS MANUAL
(United States Edition)
Digital & Analog Comm. Systems
8th Edition, L. W. Couch, II
7-30
,
Ffb\AA
\~h\e
{-
{
fOf
DP<;~
”
7
1 .
31
I
rll/,a)~”,,(-1:1
fJl
(.()
1~({J
U
~lt\
t _
z~if~~{
\
L-r\
{\
*’l..
J.I~(-f)
v’\2.
‘”t)
\()I
~—-I
2bf
309
INSTRUCTOR SOLUTIONS MANUAL
(United States Edition)
Digital & Analog Comm. Systems
8th Edition, L. W. Couch, II
I
7-32
I
<:;ee.
7l<lole)-/
~d
h’~~
‘7·/4.
(0.
‘\
P
u\
a.t
B>ctse
~
d
.~
~E:::
CV(J
CC~~))
L
to
-f;
-~
~
q.~
dl!,
0.
(6.)
00
K:
Co~~+
~€..-{-ec:h~
(c..\
&
~
~
~:
Cclt\~~+
De-
+-~~
il’cN\.
~~
~
Q
(J
L(~:))
L /0
~~
-V
~
:>
~.Co
JA
I
7-33
I
~ee
Ta.ble 7-1.
(0…)
~\
Q?~K
-f1…~
Ittf”0~s+
«
<:INId
vIA””.
~I:.-
a:.re-
f..
~
l &
::
z.
(1-
tOO
–
SOO)::’
4-~
00
b/~
<!)\”
1u.
i Ii\.
~
cI
.
310
INSTRUCTOR SOLUTIONS MANUAL
(United States Edition)
Digital & Analog Comm. Systems
8th Edition, L. W. Couch, II
/-33
[CM-t’J
(b~
7-34
I(a.)
R =
(Q
K
5~~\~S)(‘B
blt~):::
(9
Lf
K
‘cIs
s€C-
Set
~\
e
2- =
~~
~
~s
Tb
_ E
b _ ·
cd
_
/’?
/’J
./)
N – – –
/0
–
“‘,
~
No
r:)
t 0 No
I
7-35
I Al,
t,u
WI.
e.
e
c-
“s
UM.I·~”””
\:c
d,’
d,.;
(,,<A
ie.d
(()]
2
Ii
)
~
(t)
=-
A
c.
c-
L
f)
~
lt)
C6
~
(wt,
t + e
c-
‘)
:
(q 0
R’)
L
t\
~
A~
~
c-
(f \ L (
&-1
t1
\Nt
(t
\
IIv\
( tf
~
~
\.lsi\)
Sec.1\-\
·
c..
oS
(We
t+8c..)
(‘0
(,
(
We
t
+w”
‘f’
fEl
e)
311
INSTRUCTOR SOLUTIONS MANUAL
(United States Edition)
Digital & Analog Comm. Systems
8th Edition, L. W. Couch, II
——–
0.8
SNoi
(m%)
a
~
…-
~
~
~
a
m%
100
312
INSTRUCTOR SOLUTIONS MANUAL
(United States Edition)
Digital & Analog Comm. Systems
8th Edition, L. W. Couch, II
I
7-37
I
“”t-i)=-
O.+SI~
l-V,;{
~
~
….
-=.lo.;.’tt
=-
o.
oS
~r
I1~J
wi+~
p~d~d
cAetev~r)
\.($<‘
\7-~~J.
7
-38
I
\C\
,J
r~y
Yo\
l-l)’::’
V>I,
I~J
+
I1″.W
“$.4\>
-=-1
.
Y
A
\t)~
[»l,l”tJi.rnl.H:,D~(Wt-i+~<.)
+[~tt)-t~l.~)]
Sih
(w!-t.-t~l,)
VfJ
t~)
~
It>.s
lW~-t
+~(,)
J V
Eli)=-
Sif\
l
~cl
+
e,,)
L~f
m\
tt)
~
ttl\
A-..,
J…
W\,L.
(iJ
~Hr
~
Va
tir
..
F’o1l~~”j
[I
+
O>J
(~W,,-lf2.!7.JJ
~[~~~J~~(lWjt21l)
lb.)
Ld
VA(V-:.
[mW+xl-V]
CcS(W,:H0″(,)-bW±~@Si”ll.oJJteL.)
i~e~
3f3
INSTRUCTOR SOLUTIONS MANUAL
(United States Edition)
Digital & Analog Comm. Systems
8th Edition, L. W. Couch, II
i-3Q
I
lb)
C~1
‘d,
0
~
e::
;~
U)
::
~
[i2
+
~
–2
Ii
]
I 7
-39
I
\J
~
H)
=
VA
L
-l:
1 + x(t)
~
fc
r A
:::
(
….
‘2-
‘2..)
0
(~t
~:~~
~
(~)
i~
=:
@””’3
e~
=’
0_
;
At::
D –
‘0
Lt~
~/\i\.
vJ~
t
Su.
Vv’\I’V\
e-r
c~
1-
~tA
t :
=================_==============-
w
,.
tk
A
~
=-
2
(PrJ
.1)7-3~
(~)
!
~)
=:
/tc.\J<Yt:)
~
kt
v
…
?-l+.
\
=-
A~
1M
t(t~
‘(tv 0t x
2
tf)
z-lSr(
f!£)
No
&r
CEB
I
7-41
I
\J
f’
~
I
::
4
1..
M :’)!:,.
w-
~
t > (;;i
~
Lw-
2-
=-
rt
314
INSTRUCTOR SOLUTIONS MANUAL
(United States Edition)
Digital & Analog Comm. Systems
8th Edition, L. W. Couch, II
7 –
41
CD~i-)d
I
7-42
I
1SJif:)::
-At-[
l4£i)ij
~
W]
J
<hJe~)=
1″
i1ffi))
‘1~AfW
::/{UOlrll)]
:1
…
DrJty
+:>
-a-
d
jJ
e4..
yJ/,{c-
f’r,y
SJ/3
}
~’tv..
J/’1
“!Ol~)
re
fDy
SSE:
1
01-
J r J .
1.
]1-
fJ,J£p::
t;,
=
)…
[thl..1’lifN) : LL
h,L)/
{
Jf
t
lo1
UJJ-)i
(~LIorW~
c!!iiJ5
~
fAt!-
9-
A:~
2.~
!?SV
SJB
.
INSTRUCTOR SOLUTIONS MANUAL
(United States Edition)
Digital & Analog Comm. Systems
8th Edition, L. W. Couch, II