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Measurement, Instrumentation, and Sensors Handbook, Second Edition, 2nd Edition
book

Measurement, Instrumentation, and Sensors Handbook, Second Edition, 2nd Edition

by John G. Webster, Halit Eren
February 2014
Intermediate to advanced content levelIntermediate to advanced
1921 pages
82h 13m
English
CRC Press
Content preview from Measurement, Instrumentation, and Sensors Handbook, Second Edition, 2nd Edition
86-11Spectrum Analysis and Correlation
at the beginning and end of the signal and, therefore, reduces its eective signal duration. is eect is
re
ected
b
y
t
he
e
quivalent
n
oise
b
andwidth
(
ENBW)
d
ened
a
s
[
19]
ENBW =
=
=
w
w
n
n
N
n
n
N
2
0
1
0
1
2
(86.21)
For
a re
ctangular
wi
ndow
EN
BW
= 1.0 an
d
fo
r
th
e
Bl
ackman–Harris
wi
ndow
(E
quation
86.20
),
th
e
co
r-
responding
v
alue
i
s
2.0. 
e
m
ajority
o
f
o
ther
w
indow
s
hapes
h
ave
i
ntermediate
v
alues
o
f
E
NBW
[
19]
.
86.4.2 Effects of “Zero Padding”
Most FFT algorithms operate with N = 2
q
samples, the choice of q is many times critical. Since frequency
re
solution
is in
versely
pr
oportional
to N, in ma
ny
ci
rcumstances
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Publisher Resources

ISBN: 9781439848913