Communication Systems Engineering Second Edition John G pot
Communication Systems Engineering Second Edition John G pot
... 3.3
The following figure shows the modulated signals for A = 1 and f
0
= 10. As it is observed
both signals have the same envelope but there is a phase reversal at t = 1 for the second signal
Am
2
(t) ... θ)
Problem 2.53
Taking the Fourier transform of
e
j2πf
0
t
we obtain
F[
e
j2πf
0
t
]=−jsgn(f )δ(f −f
0
)=−jsgn(f
0
)δ(f − f
0
)
Thus,
e
j2πf
0
t
= F
−1
[−jsgn(f
0
)δ(f − f
0
)] = −jsg...
Communication Systems Engineering Second Edition John G. Proakis Masoud pot
... |H(f)|
2
= sgn
2
(f)
a) The energy spectral density of the output signal is
G
Y
(f) =G
X
(f)sgn
2
(f)=
G
X
(f) f =0
0 f =0
Since G
X
(f) does not contain any impulses at the origin
E
Y
= E
X
=
1
2α
27
where ... =
A
2
2
+
A
2
2
+
4A
2
2
+
4A
2
2
=5A
2
42
b) Arguing as in the previous question
G
Y
(f) =G
X
(f)sgn
2
(f)=
Π(f) f =0
0 f =0
Since Π(f) does not contain any impulses a...
SOLUTIONS MANUAL Communication Systems Engineering Second Edition John G. Proakis Masoud docx
... [cos(2π2f
c
t + θ) + cos(θ)]
44
SOLUTIONS MANUAL
Communication Systems Engineering
Second Edition
John G. Proakis
Masoud Salehi
Prepared by Evangelos Zervas
Upper Saddle River, New Jersey 07458
The ... O’Brien
Managing Editor: David A. George
Production Editor: Barbara A. Till
Composition: PreT
E
X, Inc.
Supplement Cover Manager: Paul Gourhan
Supplement Cover Design: PM Workshop...
SOLUTIONS MANUAL Communication Systems Engineering Second Edition John G. Proakis Masoud doc
... |H(f)|
2
= sgn
2
(f)
a) The energy spectral density of the output signal is
G
Y
(f) =G
X
(f)sgn
2
(f)=
G
X
(f) f =0
0 f =0
Since G
X
(f) does not contain any impulses at the origin
E
Y
= E
X
=
1
2α
27
5) ... sinc(6t)=⇒ H(f )=
1
6
Π(
f
6
) The energy spectral density of the output signal is G
Y
(f)=
G
X
(f)|H(f)|
2
and with G
X
(f)=
1
α
2
+4π
2
f
2
we obtain
G
Y
(f)=
1
α
2
+4...
SOLUTIONS MANUAL Communication Systems Engineering Second EditionJohn G. Proakis Masoud ppt
... +
1
4π
2
t
2
(cos πt − 1)
38
SOLUTIONS MANUAL
Communication Systems Engineering
Second Edition
John G. Proakis
Masoud Salehi
Prepared by Evangelos Zervas
Upper Saddle River, New Jersey 07458
3) ... |H(f)|
2
= sgn
2
(f)
a) The energy spectral density of the output signal is
G
Y
(f) =G
X
(f)sgn
2
(f)=
G
X
(f) f =0
0 f =0
Since G
X
(f) does not contain any impulses at th...
SOLUTIONS MANUAL Communication Systems Engineering Second EditionJohn G. Proakis ppt
... write
∞
n=−∞
|x
n
|
2
=
−M
n=−∞
|x
n
|
2
+
M
n=−M
|x
n
|
2
+
∞
n=M
|x
n
|
2
7
SOLUTIONS MANUAL
Communication Systems Engineering
Second Edition
John G. Proakis
Masoud Salehi
Prepared by Evangelos Zervas
Upper Saddle River, New Jersey 07458
With ... The angle modulated signal can be interpreted both as a PM and an FM signal. It is a PM
signal with phase deviation constant...
SOLUTIONS MANUAL Communication Systems Engineering Second EditionJohn G. Proakis Masoud docx
... MANUAL
Communication Systems Engineering
Second Edition
John G. Proakis
Masoud Salehi
Prepared by Evangelos Zervas
Upper Saddle River, New Jersey 07458
Chapter 3
Problem 3.1
The modulated signal ... Managing Editor: Vince O’Brien
Managing Editor: David A. George
Production Editor: Barbara A. Till
Composition: PreT
E
X, Inc.
Supplement Cover Manager: Paul Gourhan
Supplement Cover...
Tài liệu Microelectro mechanical Systems Engineering Second Edition doc
... structure, and grain size.
b
Sublimates before melting.
c
Glass transition temperature given for polymers.
An Introduction to
Microelectromechanical
Systems Engineering
Second Edition
Nadim Maluf
Kirt ... 40
Etching 44
Advanced Process Tools 55
Anodic Bonding 55
Silicon Direct Bonding 56
Grinding, Polishing, and Chemical-Mechanical Polishing 57
Sol-Gel Deposition Methods 58
Electropla...
Communication systems engineering(2nd edition)
... communication systems for transmitting digital
signals over large distances.
Storage Channels.
Information storage and retrieval systems constitute a
very significant part of our data-handling ... sources in communication
systems.
A logical beginning in the introduction of digital communication systems analysis
and design is the characterization ofinformation sources and source e...
Photovoltaic Systems Engineering SECOND EDITION docx
... Energy. He has been active in tech-
nical societies and has been the recipient of a number of awards for contributions
to engineering and engineering education.
Photovoltaic Systems Engineering2 0
... of
Photovoltaic Systems Engineering4
creases during the remaining 1970s and early 1980s. During this period, high
petroleum prices spurred the development of energy efficiency legisl...
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