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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
41-16 Time and Frequency
The difference between the two measurements is an estimate of Clock A – Clock B. Delays that
are common to both paths d
SA
and d
SB
cancel even if they are unknown, but uncorrected delay
differences between the two paths add uncertainty to the measurement result. Thus, the basic
eq
uation
fo
r
a CV
GPS
me
asurement
is
( ) ( ) ( ) ( )Clock A S Clock B S Clock A Clock B e e
SA SB
= + −−
(4
1
.3)
e
co
mponents
th
at
ma
ke
up th
e
(e
SA
e
SB
) error term include delay dierences between the two sites
caused by ionospheric and tropospheric delays, multipath signal reections, environmental conditions,
an
d
er
rors
in th
e
GP
S
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Publisher Resources

ISBN: 9781439848913