To objectively evaluate the capabilities of modern surveying and mapping datum service in Xinchang County,this paper counted,analyzed,and processed the basic data related to satellite navigation and positioning reference stations,global navigation satellite system(GNSS) network,D-class network,third class leveling network,and high-precision quasi-geoid models in Xinchang County and its surrounding areas. The results show that satellite navigation and positioning reference station network coverage is comprehensive,station network observation quality performs well,real-time kinematic(RTK) service level accuracy is better than ±1.0 cm,geodetic precision is better than ±2.5 cm,and quasi-geoid model accuracy is better than 2.0 cm. The economic and social development of Xinchang County can be supported,but it is still necessary to maintain and update the surveying and mapping datum of Xinchang County in the long run.
关键词
基准站/全球卫星导航系统/水准网/似大地水准面模型
Key words
reference station/global navigation satellite system(GNSS)/leveling network/quasi-geoid model
维普
万方数据