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平常用手机导航时,有时会收到“GPS信号弱”的提示,不少人好奇:我什么时候才能用上北斗导航系统呢?在2019年底举行的北斗三号系统提供全球服务一周年新闻发布会上,中国卫星导航系统管理办公室主任、北斗卫星导航系统新闻发言人冉承其笑着回应了这个疑问:可以负责任地告诉大家,现在绝大部分的智能手机都用到了北斗卫星。只是手机厂商、地图软件制造商习惯用GPS来代替所有卫星导航系统,“北斗”才没有出现在用户的屏...
为研讨卫星导航定位、大地测量及CORS相关技术,促进我省大地测量技术的创新发展,进一步推广JSCORS在我省的应用,充分发挥省级卫星导航定位基准站网服务系统的作用,江苏省测绘地理信息学会拟于2017年7月在南京召开2017年度江苏省测绘地理信息学会GPS、大地专业委员会学术年会暨JSCORS技术交流大会。
Assessments of the human damage caused by the tsunami are required in order to consider disaster prevention at such a regional level. Hence, there is an increasing need for the assessments of human da...
The Emilia Romagna Region (N-E Italy) and in particular the Adriatic Sea coastline of Ravenna, is affected by a noticeable subsidence that started in the 1950s, when the exploitation of on and off-sho...
With the rapid development of multi-constellation Global Navigation Satellite Systems (GNSSs), satellite navigation is undergoing drastic changes. Presently, more than 70 satellites are already availa...
The deformation monitoring network with GPS is often separated, and it appears short-baseline and high-drop between monitoring sites. In theory, the base stations must be set up in the stableplace. Bu...
Both InSAR and GPS can detect tropospheric delay of radar beam propagation caused by water vapour fluctuation. What InSAR detected is the differential results of two SAR images taken at two epochswhos...
Land records management processes and technology developed in the US can be successfully and cost effectively implemented in developing countries. Photogrammetry, GPS surveying and GIS analysis module...
In the Greater Beijing metropolitan area of North China (Beijing-Tianjin-Hebei areas), a mixed single-and dual-frequency ground-based GPS water vapor monitoring network is established to support opera...
In this research, the newly developed Hilbert Huang Transformation method is applied to decompose the time-shifted post-fit GPS phase signal residuals into a range of fluctuating components from high-...
The study describes the design, installation, testing and use of a pilot permanent GPS stations network in Cyprus, for mapping purposes. In addition, it evaluates its operation in order to produce the...
In these last years employment and spreading of GPS real-time kinematic techniques is greatly improved. Its application field is extended from traditional topographic surveys to environmental applicat...
Direct orientation of laser systems has been widely used for airborne laser sensors but not with the terrestrial laser systems. The usual way to operate a terrestrial laser is by scanning a scene whi...
What scale is the GIS basic scale? The answer of this question is very important. Since when GIS applications are investigated in the world today, it is seen that GIS developers?concepts mainly inter...
The use of location based services has increased significantly over the last few years. However, location information is only sparsely used as a security mechanism. One of the reasons for this i...

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