This** preview**
has intentionally

**sections.**

*blurred***to view the full version.**

*Sign up*
This** preview**
has intentionally

**sections.**

*blurred***to view the full version.**

*Sign up*
This** preview**
has intentionally

**sections.**

*blurred***to view the full version.**

*Sign up*
This** preview**
has intentionally

**sections.**

*blurred***to view the full version.**

*Sign up*
This** preview**
has intentionally

**sections.**

*blurred***to view the full version.**

*Sign up*
This** preview**
has intentionally

**sections.**

*blurred***to view the full version.**

*Sign up*
This** preview**
has intentionally

**sections.**

*blurred***to view the full version.**

*Sign up*
This** preview**
has intentionally

**sections.**

*blurred***to view the full version.**

*Sign up*
**Unformatted text preview: **Solutions Manual to Accompany Digital Communications
Second Edition Bernard Sklar Prentice Hall PTR
Upper Saddle River, New Jersey 07458 F“ L/ﬁ/t‘ 94"!-
‘K 7; -T7/«&)#:J: Tﬂm'éy-ffxf
....1 73"1’42. An. I,
1;_7:1_2_:df’=__2:_
15"
()%2= Amzrﬁt M"Zz_éf£§
0 W541. L _. Nerf-2040]” =— A.“
"'14. 411’ 1-1 at) 4555):: wt +£15.26 #442“ ﬂZe/vw ? H’Q/v ..
’5 cafe-25m gtaé'fj zrfanl
7:“:A “[3:21]- 0 W
m w W (xwra- T wane-0
Em =[:9c‘({-)¢t = 17" M = T
"9;, PK = £:@@)4§=[°¢§ {£31566 Mayne
4:; e i 'ch1" 1-2 _T%_ 4; I: %_
V0 '1: ”7775—
ﬂ ' ~53 mo Wm + 1, ,
Tr #17 00 do: 2-01.: Ia- To
:ﬂl—fa, A yuo(l+wa 2.0-6)4 400 C1+m¥0f)# c EST; Doot++oafjgp = 250 W
3:: Mar 2 Ial‘fécwﬁ) =fw Q6?) cal-F == 1§+2C+Ioo4~roo
Fab
= 2.579 W 1-3 5!, Myth} 62;”;
.
(at) 9:60;).— ' 5:“?!
o . -’ _J::\:Li_
-1 {1 It {1. «60) : 756-8”) V’ (b
in ’Xﬁc’)=3(t)+m Wﬁm
_;__ 1. 45(9) $6 9:09.345? Cc—v 04(6)= @750“)
I. «(7.9 = rx(—€’) / 2. 7((0) 7% 7(0) x Ii? 4.1 a») Xécw; 569+ Mm; 1-5 ,3
@(a’) .. <4 ”(mag-m) A magma 275g 24¢ p
m<>ﬁéd1Wde ’“mif’é’di W team (w Wm} "‘T’é
,5?) ' . W . £— 01) R155) "‘ @m/Df’+f3€ can 202/
.._._ 2. L
W em? -= I0 1—6 ""' D
f =
m w
£+
113%
1" “IE/2.4 (1
5 lJ—m
‘ 3> _
XE;
11<
I.
Y? g (a)[:capéﬁfée-s)oéﬁ = mm
(6)1: ,0 5(6) (;+~:)"Léé = m (d) I; Jﬁf+4)(6"+66 +2)ﬂf = "7
(d) J: wogt’) [55—23% a 5.0/83 Li [email protected])____'é[m_m+ Jame, y]
X, G) * X166) = Xﬁ) MEé—mdéﬁ] UACM—TW: (0'4 -I = 0’25‘5’4
ﬂaZS’KHL
M” 3' H Lw‘l/m] H6! Lat Me) =- Me) -II——..._.__
-I—I-—__ 666) = 366) “ {(15 ‘1‘»)
£66) IL. {afar} $604293 cm . 25>
'6- K .9
ﬂ[)— ,9 W
w)
1
“t '6 1-13 1.20 (d) The normalized spectrum, me/ 6,1106), appears as: 0.?5 6 6 6 6 9.105 92-105 94-105 45-105 .8-10 1-10‘5 LUZ-10610410 Loo-10 1.08-10 1.1-10 f Applying numerical methods with Mathcad ®, the two-sided 99%
bandwidth can be found by numerical integration as:
J106+ f1 1H Ge(f)df
EGAN where fl is found to be equal to 103 kHz. Thus, the two—sided 99%
bandwidth is equal to 206 kHz. Since this bandwidth corresponds to the given spectrum (with
signaling rate : 10,000 symbols/s), normalizing it relative to one symbol per second, yields the two-Sided 99% bandwidth as
(206x103/104) = 20.6 Hz for one symbol per second, or in general
the 99% bandwidth in terms of the signaling rate, R, is 20.6xR Hz. 2 0.99 1.20 (e)
35-dB Bandwidth: 35—dB attenuation :> 10'3-5 = 3.16 X 10“ 1-14 1-15 ...

View
Full Document

- Spring '08
- Nagaraj,SV