毕业设计（论文）外文参考资料及译文
译文题目：I
troductio
totheGlobalPositio
i
gSystem
全球定位系统的介绍
学生姓名：专业：
学
号：
集成电路设计与集成系统电子工程学院
所在学院：指导教师：职称：
201x年xx月xx日
fI
troductio
totheGlobalPositio
i
gSystem
From“CorvallisMicrotech
ologyI
c1996”
ChapterO
eWhatisGPS
TheGlobalPositio
i
gSystemGPSisalocatio
systembasedo
aco
stellatio
ofabout24satellitesorbiti
gtheearthataltitudesofapproximately11000milesGPSwasdevelopedbytheU
itedStatesDepartme
tofDefe
seDODforitstreme
dousapplicatio
asamilitarylocati
gutilityTheDODsi
vestme
ti
GPSisimme
seBillio
sa
dbillio
sofdollarshavebee
i
vestedi
creati
gthistech
ologyformilitaryusesHoweveroverthepastseveralyearsGPShasprove
tobeausefultooli
o
militarymappi
gapplicatio
saswellGPSsatellitesareorbitedhighe
oughtoavoidtheproblemsassociatedwithla
dbasedsystemsyetca
provideaccuratepositio
i
g24hoursadaya
ywherei
theworldU
correctedpositio
sdetermi
edfromGPSsatellitesig
alsproduceaccuraciesi
thera
geof50to100metersWhe
usi
gatech
iquecalleddiffere
tialcorrectio
usersca
getpositio
saccuratetowithi
5metersorlessTodayma
yi
dustriesareleveragi
gofftheDODsmassiveu
dertaki
gAsGPSu
itsarebecomi
gsmallera
dlessexpe
sivetherearea
expa
di
g
umberofapplicatio
sforGPSI
tra
sportatio
applicatio
sGPSassistspilotsa
ddriversi
pi
poi
ti
gtheirlocatio
sa
davoidi
gcollisio
sFarmersca
useGPStoguideequipme
ta
dco
trolaccuratedistributio
offertilizersa
dotherchemicalsAlso，GPSisusedforprovidi
gaccuratelocatio
sa
dasa
avigatio
toolforhikershu
tersa
dboatersMa
ywouldarguethatGPShasfou
ditsgreatestutilityi
thefieldofGeographicI
formatio
SystemsGISWithsomeco
sideratio
forerrorGPSca
providea
ypoi
to
earthwithau
iqueaddressitspreciselocatio
AGISisbasicallyadescriptivedatabaseoftheearthoraspecificpartoftheearthGPStellsyouthatyouareatpoi
tXYZwhileGIStellsyouthatXYZisa
oaktreeoraspoti
a
fstreamwithapHlevelof54GPStellsusthe