摘要
全球定位系统(Global PositioningSystem,简称GPS)是美国从20世纪70年代开始研制的用于军事部门的新一代卫星导航与定位系统,历时20年,耗资200多亿美元,分三阶段研制,陆续投入使用,并于1994年全面建成。GPS是以卫星为基础的无线电卫星导航定位系统,它具有全能性、全球性、全天候、连续性和实时性的精密三维导航与定位功能,而且具有良好的抗干扰性和保密性。因此,GPS技术率先在大地测量、工程测量、航空摄影测量、海洋测量、城市测量等测绘领域得到了应用。
GPS （Global Positioning System） is the new generation functional Global Navigation Satellite System which is funded from 1970s, and controlled by the U. S. Department of Defense. It researched and produced by 3 steps, completed in 1994, and cost more than 20 billion U. S. dollar. GPS is wireless satellite navigation positioning system based on satellites, has the all - around, global, all - weather, continuous and real -time precise 3 D navigation and positioning functions, with good anti -interference and security performance. Therefore, GPS technology was widely applied in surveying and mapping fields, such as geodetic, engineering survey, aerial photogrammetric survey, marine survey, and urban survey.
出处
《测绘与空间地理信息》
2008年第5期101-103,共3页
Geomatics & Spatial Information Technology
关键词
GPS定位系统
RTK
像控点测量
GPS positioning system
RTK
aerial photograph control point survey
