摘要
GPS全球定位系统是随着现代科技发展而建立起来的高精密卫星导航定位系统。GPS测量具有很多传统测量方式所不具备的优点,如无须通视、高精度、全天候、操作简便、自动化高等,因此GPS测量可以极大地提高生产效率。水准测量是GPS应用的一个重要方面,用水准拟合方法将GPS测量所得到的大地高转化为我国所通用的正常高已经成为我国GPS研究的重要方面。本文通过实验来比较GPS水准不同的拟合方法和拟合点的分布对GPS水准面拟合精度的影响。
GPS global positioning system is a high precision satellite navigation and positioning system established by modem science and technology development. GPS has many of the traditional measurement method which has the advantages, such as no visibility, high precision, all- weather, simple operation, high automation, and so on, it could greatly improve production efficiency. Leveling survey is an important aspect of GPS applications. Therefore, the fitting method using the GPS geodetic measurements obtained high into the common normal country has become an important aspect of GPS research. In this paper, the influence of different fitting meth- ods and the distribution of fitting points on the fitting accuracy of GPS level is compared by experiments.
出处
《测绘与空间地理信息》
2017年第5期78-80,共3页
Geomatics & Spatial Information Technology
关键词
GPS水准
大地高
GPS水准面拟合
精度分析
GPS level measurement
geodetic height
fitting of GPS geoid
accuracy analysis
