毕业设计(论文)外文参考资料及译文译文题目:IntroductiontotheGlobalPositioningSystem 全球定位系统的介绍学生姓名:学号:专业:通信工程所在学院:指导教师:职称:IntroductiontotheGlobalPositioningSystem---------From“CorvallisMicrotechnology,”ChapterOne:WhatisGPS?TheGlobalPositioningSystem(GPS)isalocationsystembasedonaconstellationofabout24satellitesorbitingtheearthataltitudesofapproximately11,(DOD),',overthepastseveralyears,GPShasproventobeausefultoolinnon-,uratepositioning24hoursaday,,,manyindustriesareleveragingofftheDOD',,,uratelocationsandasanavigationtoolforhikers,(GIS).Withsomeconsiderationforerror,GPScanprovideanypointonearthwithauniqueaddress(itspreciselocation).AGISisbasicallyadescriptivedatabaseoftheearth(oraspecificpartoftheearth).GPStellsyouthatyouareatpointX,Y,ZwhileGIStellsyouthatX,Y,Zisanoaktree,"where".GIStellsusthe"what".GPS/anize,:Trilateration-HowGPSDeterminesaLocationInanutshell,GPSisbasedonsatelliteranging-calculatingthedistancesbetweenthereceiverandthepositionof3ormoresatellites(4ormoreifelevationisdesired),thelocationofthereceivercanbecalculatedbydeterminingt
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