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Items for "GPS"

Sensitivity analysis as a general tool for model optimisation – examples for trajectory estimation

This paper outlines the general characteristics of variance-based sensitivity analysis and their advantages with respect to other concepts of sensitivity analysis...

Keywords: sensitivity analysis, vehicle positioning, Kalman filter, GPS, model optimisation

05/2007 | Journal of Applied Geodesy, Walter de Gruyter

GPS deflection monitoring of the West Gate Bridge

The achievable precision and relatively high sampling rates of currently available GPS receivers are well suited for monitoring the movements of long-span engineering structures where the amplitude of movements is often more than a few centimetres and the frequency of vibrations is low (below 10 Hz)...

Keywords: West Gate Bridge, GPS, Deflection Monitoring, Accelerometers

05/2007 | Journal of Applied Geodesy, Walter de Gruyter

On accurate time synchronization of multi-sensor mobile mapping systems

This paper introduces a GPS time synchronization method intended for airborne and ground-based mobile mapping systems, where multiple sensors simultaneously acquire geospatial data, and accurate co-registration of the data in space and time domains is necessary...

Keywords: Time synchronization, GPS, mobile mapping, calibration

01/2008 | Journal of Applied Geodesy, Walter de Gruyter

Land subsidence characteristics of the Bandung Basin, Indonesia, as estimated from GPS and InSAR

The Bandung Basin is a large intra-montane basin surrounded by volcanic highlands, in western Java, Indonesia, inhabited by more than five million people...

Keywords: Subsidence, GPS, InSAR, Bandung, Groundwater

01/2008 | Journal of Applied Geodesy, Walter de Gruyter

How groundwater withdrawal and recent tectonics cause damages of the earth's surface: Monitoring of 3D site motions by GPS and terrestrial measurements

The intensive brown coal mining activities occurring since the mid-fifties of the last century in the Lower Rhine Embayment have caused massive landscape changes...

Keywords: GPS, Subsidence, crustal movement, heights, Erft Fault system

02/2008 | Journal of Applied Geodesy, Walter de Gruyter

Technical Report: Determination of the orthometric height inside Mosul University campus by using GPS data and the EGM96 gravity field model

In the geodesy science, the heights determined by Global Positioning System (GPS) measurements are related to the perpendicular distance above the reference ellipsoid, while heights above Mean Sea Level (MSL) are determined with respect to geoid...

Keywords: EGM96, GPS, undulation, orthometric, ellipsoid