搜索结果: 1-15 共查到“地理信息系统 D-GPS”相关记录47条 . 查询时间(0.16 秒)
北斗全球核心星座部署完成 再无“GPS信号弱”提示
北斗 核心星座 “GPS信号弱”
2020/8/5
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。
Evaluating the Human Damage of Tsunami at Each Time Frame in Aggregate Units Based on GPS data
GIS The Nankai trough megathrust earthquake Evacuation Casualties Population distribution
2016/11/30
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...
MONITORING OF LAND SUBSIDENCE IN RAVENNA MUNICIPALITY USING INTEGRATED SAR-GPS TECHNIQUES:DESCRIPTION AND FIRST RESULTS
Ravenna Land Subsidence GPS DInSAR Staring Spotlight Sentinel-1
2016/11/23
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...
GPS AND GLONASS COMBINED STATIC PRECISE POINT POSITIONING (PPP)
GPS GLONASS Precise Point Positioning (PPP)
2016/7/4
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...
RESEARCH ON DATA PROCESSING OF DEFORMATION MONITORING FOR SIDE SLOPE BY NEW DEVELOPED SPECIAL GPS SOFTWARE
Data processing Deformation monitoring Side slope GPS Quasi-stable adjustment Classical adjustment
2016/3/17
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...
STUDY ON GPS STATION’S ZENITH DELAY TO MITIGATE THE INSAR ATMOSPHERE EFFECT
Atmosphere SAR GPS Temporal Correlation Climate
2015/12/30
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...
THE UNIFIED ROLE OF GPS,PHOTOGRAMMETRY,GIS AND LAND POLICY IN SECURING LAND TENURE IN DEVELOPING COUNTRIES
Secure Land Tenure Land Policy Reform Photogrammetry GPS Surveying GIS
2015/12/28
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...
THE DESIGN AND APPLICATION OF NETWORK OF GROUND-BASED GPS WATER VAPOR MONITORING STATIONS TO IMPROVE PRECIPITATION PREDICTION IN THE GREATER BEIJING METROPOLITAN AREA
GPS/INS Meteorology Precipitation Prediction Application Design Monitoring
2015/12/28
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...
Multipath Reduction on Repetition in Time Series from the Permanent GPS Phase Residuals
Spatial Information Sciences Geodesy Navigation Prediction GPS
2015/12/17
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-...
Establishment and Evaluation Aspects of Cyprus GPS Permanent Network for Mapping Applications
Navigation GPS/INS Spatial Infrastructures Urban Value-added System Mobile Mapping
2015/12/16
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...
GPS-GIS Integrated System for Electromagnetic Pollution
GPS GIS Mobile Pollution Radiation
2015/11/20
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...
Integration of A Terrestrial Laser Scanner With Gps/imu Orientation Sensors
Integration Orientation GPS/IMU
2015/7/15
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...
Geodetic Infrastructure of Turkey for gis, Gps and Remote Sensing Applications
Geodesy Spatial Infrastructure Reference Data
2015/7/7
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...
Secure Location Verification A Security Analysis of GPS Signal Authentication
Location Verifi cation GPS Signal Authentication Geosecurity
2015/6/25
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...