本科毕业设计（论文）本科毕业设计（论文）中英文对照翻译
院（系部）专业名称年级班级学生姓名指导老师
2010年06月11日
f河南理工大学本科毕业论文
Summarizi
gTheGlobalPositio
i
gSystem
AbstractGlobalPositio
i
gSystemisbasedo
thebackgrou
doftheU
itedStates
Departme
tofDefe
seItisdesig
edi
vesteddevelopeda
doperatedbytheU
itedStatesDepartme
tofDefe
seGPSisasatellitebasedpositio
i
ga
dtimetra
sferi
gGPSpositio
i
gfu
ctio
hasawidera
geofapplicatio
si
themoder
measureme
ta
damoremoder
buildi
gGPSRTKtech
ologyisalsowidelyusedi
moder
izatio
buildi
ga
d
owGPShasalsobee
show
tobea
importa
tcivilia
commu
itiesofi
teresta
di
creasi
glywidera
geofapplicatedKeywordGPSLocati
g，RTK，Layout，Survey
1Backgrou
d
The50stheformerUSSRhas
otlau
chedhuma
itiesfirstartificialearthsatellitetheAmerica
scie
tistsi
alo
gitstrackresearchi
haddiscoveredtheDopplershiftphe
ome
o
a
dhasfacilitatedDopplersatellite
avigatio
positio
i
gsystemcompleti
gusi
gthispri
ciplehasobtai
edthee
ormoussuccessi
themilitarya
dtheciviaspectwasi
a
avigatio
localizatio
historyleapourcou
tryo
cehasalsoi
troducedma
yDopplerreceiverappliedtotheisla
dassociatio
measuredtheEarthexploreda
dsoo
theappliedtotheisla
dassociatio
measuredtheEarthexploreda
dsoo
thedomai
ButbecauseDopplersatelliteorbithighlylowsig
alcarrierfreque
cylowthetrackprecisio
e
ha
ceswithdifficultycausesthepoi
ti
gaccuracylowlysatisfiesthegeodeticsurveyortheprojectsurveyrequestismoreimpossibletousei
theastro
omyEarthdy
amicsresearchI
ordertoe
ha
cethesatellitepositio
i
gtheprecisio
USstartedfrom1973toprepareforco
structio
globalpositio
i
gsystemGPSGlobalPositio
i
gSystemAfterhase
teredthepla
proofthesystemteststagestartedi
1989tolau
chtheofficialworksatellitea
dcompletelycompletedi
1994i
vestme
tuseTheGPSsystemspaceartiallyiscomposedbytwe
tyo
esatelliteseve
lydistributesi
sixorbitthegrou
dlevelis20000Kilometersthei
cli
atio
oforbitis55theflatheartrateapproximatelyis0theweekco
tractis12hoursthesatellitetotheearthlau
chi
gtwowaveba
dsi
tellige
cesig
alsthei
tellige
cesig
alfreque
cyrespectivelyis1575442megacyclesperseco
dtheL2waveba
do
thesatellitehasi
stalledtheprecisio
very
1
f河南理工大学本科毕业论文
highatomicclockguara
teesthefreque
cythestabilitymodulatesi
thecarrierhastheexpressio
satellitepositio
thebroadcaststarexperie
ceusei
thera
gefi
derCAcodea
dPyardaswelladothersystemi
formatio
ca
i
theglobalscopetowillfullymultiuserprovidethehighaccuracyallweatherisco
ti
ualrealtimethreedime
sir