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全球定位系统(GloblePositioningSystem,简称GPS)是美国从20世纪70年代开始研制,历时20多年,耗资200多亿美元,于1994年全面建成,具有在海、陆、空进行全方位实时三维导航与定位功能的新一代卫星导航与定位系统。GPS以全天候、高精度、自动化、高效益等显著特点,赢得了广大测绘工作者的信赖,并成功地应用于大地测量、工程测量、航空摄影测量、运载工具导航和管制、地壳运动监测、工程变形监测、资
The Global Positioning System (GPS) was developed in the United States from the 1970s and lasted for more than 20 years. It cost more than US$20 billion and was completed in 1994. It has full-time real-time navigation and positioning in the sea, land and air. Functional new generation satellite navigation and positioning system. With its all-weather, high-precision, automation, and high-efficiency features, GPS has won the trust of many surveying and mapping workers and has been successfully applied to geodetic surveying, engineering surveying, aerial photogrammetry, navigation and control of delivery vehicles, monitoring of crustal movement, and engineering. Deformation monitoring, resources