Steep-Slope Monitoring GPS Multiple-Antenna System at Xiaowan Dam Nov 1, 2005 By: Xiufeng He, Wengang Sang, Yongqi Chen, Xiaoli Ding

Although GPS is an efficient tool for deformation monitoring, it also is an expensive one for large projects. The authors developed a remote-controlled monitoring system using an electronic switching device for multiple antennas to monitor steep slopes at the Xiaowan hydropower station in China.

The Concrete and the Clay Monitoring Large-Structure Deformation Aug 1, 2002 By: Matteo Luccio

Every structure moves, if only imperceptibly to the unaided human eye.

What's Shaking? Earthquake Trials Test Networked RTK Gauging structural responses to landslides and earthquakes requires accurate measurements of ground surface movements. High precision real-time kinematic (RTK) GPS networks can provide this centimeter-level accuracy. System designers tested such a network in a unique full-scale earthquake experiment in Japan. Apr 1, 2002 By: Loren Turner

Recent advances in GPS technologies make ground surface displacement measurements under static as well as dynamic conditions easier to obtain with increased accuracy